I ran into a problem today where the program got stuck on the splash screen and would not start. This was solved my deleting the .metadata folder in my workspace. This is a hidden folder, as indicated by the dot, and you can see it in GUI file manage...

This is indeed a Wayland problem. It is solved by starting the IDE by executing the file called stm32cudeide_wayland instead of stm32cubeide that resides in the same folder. This is done by either right clicking the file -> Run as a Program, or by ty...