Hello, I am running Unity 2020.1.4f1 and 2019.4.9f1 from the UnityHub, and both editors have the same problem: almost all menu entries in the editor's application menu are greyed out. I mean the menu with the "File", "Edit" and so on at the top of the window. I am using Kubuntu 20.04 with the global menu widget. I have attached a screenshot, please excuse the crummy quality (I could not take a proper screenshot with the menu open). The individual menu entries can be accessed via their keyboard shortcuts, at least if they have any defined. But all the other ones are inaccessible.