First foremost: I am aware that this is not a general Typo3 bug/error per se, as I have working installations. I am hoping for hints/help in finding the error in this installation, as it's way too big to just set it up as a new installation.
I have an erronous Typo3 10.4.17 installation (updated to 10.4.x, no fresh install)
Problem: Edited elements in workspace are not shown in the Frontend preview (opened via "Show webpage" or other basic means in BE) nor in the BE View-module.
Additional info #1: They are however shown when preview links are generated via "Generate page preview links" and those are viewed.
Additional info #2: Changed elements only become visible after publishing them & clearing Cache
Additional info #3: Clearing any Cache does not make them visible in the preview
After comparing all settings I could think of to another working installation I decided to delve into the core in search for a hint/solution and got stuck there at following point:
TYPO3\CMS\Workspaces\Controller\PreviewController
Line 130 $workspaceItemsArray = $this->workspaceService->selectVersionsInWorkspace()
As well as:
TYPO3\CMS\Workspaces\Service\WorkspaceService
Line 220 public function selectVersionsInWorkspace()
At this point my edited workspace version of the element does get retrieved. selectVersionsInWorkspace() does get called when viewing the preview.
While the PreviewController does not further filter the staged elements, they are not displayed in the Preview.
I am looking for any hint as to where selectVersionsInWorkspace() might still be filtered or other hints as to possible reasons/solutions for this problem that I may have overlooked.
