I just unpinned a post in one of my group and then saw bottom left in RED "post deleted", but I "think" I could still see the post.
Then I unpinned a 2nd post and the same happened (and am sure that post is still in the feed).
I then started questioning my sanity as I have been ill and having brain fog so I thought I'll try a 3rd time and see and look really carefully.
Anyway maybe as it knew I was watching? π€·ββοΈ but this time it didn't do it and said "unpinned".
The whole thing reminded me of the quantum physics "double split" experiment where the atoms acted differently when they knew they were being observed!