Auto-Layout, Button-Group Elements can not be created

[wini2]

TYPO3-Version

14.3.0

t3sbootstrap-Version

5.3.44

What happened?

Trying to insert Auto-Layout or Button-Group end with an error in BE.
(1/1) #1480765571 RuntimeException

Expected behavior

The error appears with the wizard an the CType dropdown from within another contentelement-type.

[t3solution]

Unfortunately, I can't reproduce the issue.
Do you see any error messages in the console?

[wini2]

Does this help?
(1/1) #1480765571 RuntimeException
Data structure identifier must be set, typically by executing TcaFlexPrepare data provider before

(1/1)
#1480765571 RuntimeException

Data structure identifier must be set, typically by executing TcaFlexPrepare data provider before

in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataProvider/TcaFlexProcess.php line 46

at TYPO3\CMS\Backend\Form\FormDataProvider\TcaFlexProcess -> addData ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataGroup/OrderedProviderList.php line 76

at TYPO3\CMS\Backend\Form\FormDataGroup\OrderedProviderList -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataGroup/TcaDatabaseRecord.php line 36

at TYPO3\CMS\Backend\Form\FormDataGroup\TcaDatabaseRecord -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataCompiler.php line 83

at TYPO3\CMS\Backend\Form\FormDataCompiler -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Controller/EditDocumentController.php line 846

at TYPO3\CMS\Backend\Controller\EditDocumentController -> makeEditForm ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Controller/EditDocumentController.php line 317

at TYPO3\CMS\Backend\Controller\EditDocumentController -> mainAction ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/RouteDispatcher.php line 84

at TYPO3\CMS\Backend\Http\RouteDispatcher -> dispatch ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/RequestHandler.php line 85

at TYPO3\CMS\Backend\Http\RequestHandler -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/ResponsePropagation.php line 34

at TYPO3\CMS\Core\Middleware\ResponsePropagation -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/AdditionalResponseHeaders.php line 37

at TYPO3\CMS\Backend\Middleware\AdditionalResponseHeaders -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/PageContextInitialization.php line 66

at TYPO3\CMS\Backend\Middleware\PageContextInitialization -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/SiteResolver.php line 64

at TYPO3\CMS\Backend\Middleware\SiteResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/SudoModeInterceptor.php line 60

at TYPO3\CMS\Backend\Middleware\SudoModeInterceptor -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/JavaScriptLabelImportMapEntryResolver.php line 53

at TYPO3\CMS\Backend\Middleware\JavaScriptLabelImportMapEntryResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ContentSecurityPolicyHeaders.php line 60

at TYPO3\CMS\Backend\Middleware\ContentSecurityPolicyHeaders -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendModuleValidator.php line 85

at TYPO3\CMS\Backend\Middleware\BackendModuleValidator -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendUserAuthenticator.php line 171

at TYPO3\CMS\Backend\Middleware\BackendUserAuthenticator -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-reactions/Classes/Http/Middleware/ReactionResolver.php line 56

at TYPO3\CMS\Reactions\Http\Middleware\ReactionResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/RequestTokenMiddleware.php line 71

at TYPO3\CMS\Core\Middleware\RequestTokenMiddleware -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendRouteInitialization.php line 77

at TYPO3\CMS\Backend\Middleware\BackendRouteInitialization -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ContentSecurityPolicyReporter.php line 45

at TYPO3\CMS\Backend\Middleware\ContentSecurityPolicyReporter -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ForcedHttpsBackendRedirector.php line 55

at TYPO3\CMS\Backend\Middleware\ForcedHttpsBackendRedirector -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/LockedBackendGuard.php line 76

at TYPO3\CMS\Backend\Middleware\LockedBackendGuard -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/NormalizedParamsAttribute.php line 44

at TYPO3\CMS\Core\Middleware\NormalizedParamsAttribute -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 70

at TYPO3\CMS\Core\Http\MiddlewareDispatcher -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 83

at TYPO3\CMS\Core\Http\AbstractApplication -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/Application.php line 56

at TYPO3\CMS\Backend\Http\Application -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/RequestHandler.php line 38

at TYPO3\CMS\Core\Http\RequestHandler -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/ResponsePropagation.php line 34

at TYPO3\CMS\Core\Middleware\ResponsePropagation -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/NormalizedParamsAttribute.php line 44

at TYPO3\CMS\Core\Middleware\NormalizedParamsAttribute -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/VerifyHostHeader.php line 55

at TYPO3\CMS\Core\Middleware\VerifyHostHeader -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$79 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 70

at TYPO3\CMS\Core\Http\MiddlewareDispatcher -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 83

at TYPO3\CMS\Core\Http\AbstractApplication -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 106

at TYPO3\CMS\Core\Http\AbstractApplication -> run ( )
in /var/www/html/public/index.php line 28

at {closure} ( )
in /var/www/html/public/index.php line 33

[t3solution]

... before I release a bug fix... could you try the following:
Attached is a ZIP file containing two files: tt_content_container.php and tt_content_newCType.php.
After unzipping, copy both files to the Configuration/TCA/Overrides/ directory and overwrite the existing files.
Then clear the cache!

Is the error still there?

502.zip

[wini2]

thanks for the fix but unfortunately it doesn't help. After exchanging files from the fix I still get
(1/1)
#1480765571 RuntimeException

Data structure identifier must be set, typically by executing TcaFlexPrepare data provider before

in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataProvider/TcaFlexProcess.php line 46

at TYPO3\CMS\Backend\Form\FormDataProvider\TcaFlexProcess -> addData ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataGroup/OrderedProviderList.php line 76

at TYPO3\CMS\Backend\Form\FormDataGroup\OrderedProviderList -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataGroup/TcaDatabaseRecord.php line 36

at TYPO3\CMS\Backend\Form\FormDataGroup\TcaDatabaseRecord -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Form/FormDataCompiler.php line 83

at TYPO3\CMS\Backend\Form\FormDataCompiler -> compile ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Controller/EditDocumentController.php line 846

at TYPO3\CMS\Backend\Controller\EditDocumentController -> makeEditForm ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Controller/EditDocumentController.php line 317

at TYPO3\CMS\Backend\Controller\EditDocumentController -> mainAction ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/RouteDispatcher.php line 84

at TYPO3\CMS\Backend\Http\RouteDispatcher -> dispatch ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/RequestHandler.php line 85

at TYPO3\CMS\Backend\Http\RequestHandler -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/ResponsePropagation.php line 34

at TYPO3\CMS\Core\Middleware\ResponsePropagation -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/AdditionalResponseHeaders.php line 37

at TYPO3\CMS\Backend\Middleware\AdditionalResponseHeaders -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/PageContextInitialization.php line 66

at TYPO3\CMS\Backend\Middleware\PageContextInitialization -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/SiteResolver.php line 64

at TYPO3\CMS\Backend\Middleware\SiteResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/SudoModeInterceptor.php line 60

at TYPO3\CMS\Backend\Middleware\SudoModeInterceptor -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/JavaScriptLabelImportMapEntryResolver.php line 53

at TYPO3\CMS\Backend\Middleware\JavaScriptLabelImportMapEntryResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ContentSecurityPolicyHeaders.php line 60

at TYPO3\CMS\Backend\Middleware\ContentSecurityPolicyHeaders -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendModuleValidator.php line 85

at TYPO3\CMS\Backend\Middleware\BackendModuleValidator -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendUserAuthenticator.php line 171

at TYPO3\CMS\Backend\Middleware\BackendUserAuthenticator -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-reactions/Classes/Http/Middleware/ReactionResolver.php line 56

at TYPO3\CMS\Reactions\Http\Middleware\ReactionResolver -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/RequestTokenMiddleware.php line 71

at TYPO3\CMS\Core\Middleware\RequestTokenMiddleware -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/BackendRouteInitialization.php line 77

at TYPO3\CMS\Backend\Middleware\BackendRouteInitialization -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ContentSecurityPolicyReporter.php line 45

at TYPO3\CMS\Backend\Middleware\ContentSecurityPolicyReporter -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/ForcedHttpsBackendRedirector.php line 55

at TYPO3\CMS\Backend\Middleware\ForcedHttpsBackendRedirector -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Middleware/LockedBackendGuard.php line 76

at TYPO3\CMS\Backend\Middleware\LockedBackendGuard -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/NormalizedParamsAttribute.php line 44

at TYPO3\CMS\Core\Middleware\NormalizedParamsAttribute -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 70

at TYPO3\CMS\Core\Http\MiddlewareDispatcher -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 83

at TYPO3\CMS\Core\Http\AbstractApplication -> handle ( )
in /var/www/html/vendor/typo3/cms-backend/Classes/Http/Application.php line 56

at TYPO3\CMS\Backend\Http\Application -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/RequestHandler.php line 38

at TYPO3\CMS\Core\Http\RequestHandler -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/ResponsePropagation.php line 34

at TYPO3\CMS\Core\Middleware\ResponsePropagation -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/NormalizedParamsAttribute.php line 44

at TYPO3\CMS\Core\Middleware\NormalizedParamsAttribute -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Middleware/VerifyHostHeader.php line 55

at TYPO3\CMS\Core\Middleware\VerifyHostHeader -> process ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 162

at Psr\Http\Server\RequestHandlerInterface@anonymous/var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php:128$c03 -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/MiddlewareDispatcher.php line 70

at TYPO3\CMS\Core\Http\MiddlewareDispatcher -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 83

at TYPO3\CMS\Core\Http\AbstractApplication -> handle ( )
in /var/www/html/vendor/typo3/cms-core/Classes/Http/AbstractApplication.php line 106

at TYPO3\CMS\Core\Http\AbstractApplication -> run ( )
in /var/www/html/public/index.php line 28

at {closure} ( )
in /var/www/html/public/index.php line 33

(here for auto-layout).

If a buxfix release is planned, there's another little/small item - too small for new issue. The hover effect for ce-links don't work because of missing comma
ce-link-content and similar at ce-link-content:hover
box-shadow: 0 1px 3px #0000001f 0 1px 2px #0000003d;
box-shadow: 0 1px 3px #0000001f , 0 1px 2px #0000003d;

[wini2]

A strange thing I noticed. When swtiching the type of a content element to Button-Group or Auto-Layout, I get an error - but after reload the Button-Group / Auto-Layout is present. The screenshots show that behaviour. Tested with your fix #502.

After the change I can insert elements to the container but I can't edit the Auto-Layout-container. Strangely the Button-Group-container can be edited.

Maybe it helps to find the cause.