I’ve imported a custom font and it shows up just fine until I save. Once I save, the 3D Text object goes blank and I have to make a new one. Do I need to do anything special after applying the font to the 3D text?
If you haven’t already checked, you might check out the console for any warnings or errors. If you find any, please paste them in here.
Barring that, you could always double-check the Unity manual page on fonts for any helpful information.
If you’re making any of these changes while the editor is in “play” mode, the editor will revert to pre-play state once the game is stopped. I’m guessing that’s not a factor, here, but it comes to mind as something I should mention just in case.