When I open a Font, all the Glyphs are completely blank and only shows outlines in the editor which make this program unusable no matter when I try every Fonts.
I switch to Linux and currently try to get it to function properly myself, but nothing changes.
Specs:
OS: Kubuntu noble 24.04 x86_64
Host: OMEN 25L Desktop GT12-0xxx
Kernel: Linux 6.8.0-47-generic
DE: KDE Plasma 5.27.11
CPU: Intel(R) Core™ i5-10400 (12) @ 4.30 GHz
GPU: NVIDIA GeForce GTX 1660 SUPER
Can you try the light theme?
Or in options force light colors?
Tried that and still no difference.
Maybe you accidentally changed the Glyph Display Mode from the View menu? If it is set to Color it will show empty slots as your font has no color glyphs.