I could not find much information on this issue for some reason. This bug report and this bug report only seem loosely related, in the sense that they involve invisible menus. The first applies only to Windows systems, occurs randomly, and is fixed by restarting the application. The second occurs only after minimizing the application. Both are old and look to be resolved. In my issue, the menus never appear (even immediately after opening the application). This looks closer (though the initial comment is kinda confusing so I don't know for sure), but that bug is almost a year old and was fixed in 5.15.1, and I'm on 5.15.2-5. Due to either the lack of information or my inability to find it, I don't really know where to start with this. Is it likely that I have a configuration error, or should I try downgrading packages?