Either 19.1 or rc.1 fixes the bug from what I saw.
But the question then becomes when the last post was made to apocalyptic art. From my quick glance it was 4 days ago on the lemmy.ml mirror, which seems behind the most recent posts on the actual community. Lemmy.ml is on the newest version.
So my guess is that there’s some general federation issue, possibly on the feddit.de end, which is causing some things to get dropped.
If that’s not the issue, then there could be a similar bug that hasn’t yet been noticed.