Pressing the Alt key hangs any Pyglet application until Alt is pressed again. When I say 'hang', I mean all clock scheduled function calls and screen refreshes seem to stop happening. The application ...

I tried to load a custom font using pyglet font add_file. The "cjk-char-bold.ttf" can be found here: https://github.com/NightFurySL2001/CJK-character-count/blob ...