Uploaded font not showing correctly

I have uploaded 3 custom fonts to my site all with .tff files as those are the only files I have. 2 of the 3 fonts work great and look exactly as they should but the third just doesn’t work. I click to change the font and nothing happens. I’ve tried uploading the font a few times and tried with a new file but still nothing. Is it possible that it isn’t compatible even though it works when not on WordPress??

Help welcome!!