No idea;
- Do you get this no matter what you try to run in FS-UAE?
- Are you using any special config? Does it happen with clean/default config?
- What operating system is this? Windows 10?
- Is other UI elements also affected, e.g. the menu you open with F12?
You should attach fs-uae.log.txt as well (
https://fs-uae.net/log-files-needed)