Loading from a directory all filepaths are squares

When I am loading a file, in some cases (both of the incidents so far have been loading old wallet files for cryptocurrency clients), everything shows up as squares/rectangles, in every directory. It looks like everything is correct, but it makes it difficult to pick the right file from a directory. In addition, error messages are unreadable for the same reason.

first thing comes to my mind - fonts. try to change system (or otherwise overriden) fonts. If you removed some (I know, having 30MB with just fonts is crazy but vera is really just latin). If path name really contains just latin - then perhaps the font which is set doesn’t have latin?
As i understand it’s about file dialog only, otherwise path/file names are correct?

Your assumprtions are correct, but I’m still having trouble. Haven’t changed anything from default font settings.