It’s great that recently edited files automatically add this to the menu in cinnamon.
However, it continues to show the file that is no longer in the menu. This disappears if I don’t click for a while
But I can’t do that I click unconsciously, I’m in a loop.
I’m not familiar with Cinnamon, but on my system, the recently accessed files are listed in ~/.local/share/RecentDocuments/. You should be able to delete the entries manually from there.