I'm having this very weird issue with Nemo file manager (that I use to replace Nautilus).
When I make the menu bar appear (using Alt or right click on the top bar), and the click on any of the options (File, Edit etc...) the option menu appears then almost instantly disappears, and I can't figure out why. The GIF doesn't even show the menu appearing.
Any ideas why ? This is really annoying...
On Ubuntu 20.04, Gnome 3.36.8.