When a composition is shared in the workshop, the composition of the editor is eliminated. Personally I have no problem with this since I always have a lot of copies everywhere but it can be annoying to have to create the composicon again after uploading it to the workshop.
I have also noticed that when trying to eliminate a large number of entities they can be duplicated and these duplicates can only be eliminated one by one. sometimes it is necessary to restart to be able to eliminate them in the editor