D11 views dependent filter

Nevidím tu prílohu s chybou, tak ju vložím sem:
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TypeError: Drupal\Component\Utility\Html::escape(): Argument #1 ($text) must be of type string, null given, called in /var/www/merika/drupal/web/core/lib/Drupal/Component/Render/FormattableMarkup.php on line 256 in Drupal\Component\Utility\Html::escape() (line 431 of core/lib/Drupal/Component/Utility/Html.php).

Drupal\Component\Render\FormattableMarkup::placeholderEscape() (Line: 205)
Drupal\Component\Render\FormattableMarkup::placeholderFormat() (Line: 195)
Drupal\Core\StringTranslation\TranslatableMarkup->render() (Line: 15)
Drupal\Core\StringTranslation\TranslatableMarkup->__toString() (Line: 1149)
Drupal\views_ui\ViewEditForm->getFormBucket() (Line: 624)
Drupal\views_ui\ViewEditForm->getDisplayDetails() (Line: 396)
Drupal\views_ui\ViewEditForm->getDisplayTab() (Line: 213)
Drupal\views_ui\ViewEditForm->form() (Line: 107)
Drupal\Core\Entity\EntityForm->buildForm() (Line: 42)
Drupal\views_ui\ViewFormBase->buildForm()
call_user_func_array() (Line: 528)
Drupal\Core\Form\FormBuilder->retrieveForm() (Line: 279)
Drupal\Core\Form\FormBuilder->buildForm() (Line: 48)
Drupal\Core\Entity\EntityFormBuilder->getForm() (Line: 220)
Drupal\views_ui\Controller\ViewsUIController->edit()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->{closure:Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber::wrapControllerExecutionInRenderContext():121}() (Line: 593)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->{closure:Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber::onController():96}() (Line: 183)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 709)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Ďakujem, môj web je len testovacie "pieskovisko", takže skúmať to moc nie je potrebné :-). Skúsil som nainštalovať verziu D10 a tam view dependent filter funguje korektne. Ďakujem za Vaše návody. Či na vašom blogu, knihách alebo na youtube.