RJ TextEd

When I use the menu in the File Explorer in a empty space I get this strange behaviour, there are three empty line with "-" and one of them have a sub-menu.
My program is set in English, my system in Italian but, why I get Japanese/Chinese/? on the menu and why there are three empty lines?

It's a theme issue. Unfortunately I can't do anything about it. It should display properly if you turn off themes...

Thanks, you are right but, how can I fix it if you can't do anything?