Created attachment 186574 [details] shows the blacked menus When working on a 2 monitor layout and one monitor is closed and you open it the menus are shown in dark background/black letters (so you cant see anything) and you need to open and close the Suite to fix it. The Steps to reproduce in mine setup are : 1. start pc with 1 monitor on. 2. open libreoffice (currently 7.4 edition) 3. open calc (it happens on all app menus) 4. create new sheet 5. open the 2nd monitor 6. blink screen from windows adjusting the new resolutions 7. menus are now black in libreoffice (app staying at the same started monitor.) The same happens when you turn off the monitor too.
This is tracked in bug 151756. Please see there for workaround (experimental feature in LibreOffice 7.4), or update to 7.5 for improved dark mode support. Thanks! *** This bug has been marked as a duplicate of bug 151756 ***