Due to another error, I had to completely rebuild a system. In the "Activity Stream" area, I would now like to upload and display a photo, both as an administrator and as a user. In the old system, which I still have (unpublished) running on the server, this is possible without any problems.
Although I have matched the settings on both systems piece by piece and they are now absolutely identical, the following happens:
I upload a photo, the preview image is displayed. As soon as I want to publish it, a text with the image description remains visible for a short time, but it disappears again immediately.
20 minutes later: Now the hole system ist down. After deinstalling Community-Builder system runs without any problems.