In my case I have shares in different offices synced with Syncthing. This is a directory that was created by a user on a share (local), it was full of files. It synced to another location (remote). The user no long wanted these files so deleted the directory. This action did not sync. It was removed from the users share (local).
I ran tests myself creating directories and putting files in, allowing it to sync then deleted it. All good.
As a test i manually deleted the directory from the remote share. It was removed. So now there is no issue except the out of sync error still persists for these 2 locations: Local site:
Remote site:

