hotkey config can't handle input from f13-f24 keys

[TheoCGaming]

os: arch linux 6.10.6-zen1-1-zen keyboard: unicomp pc-122 over ps/2 (custom xmodmap and setkeycodes script, system recognizes all keys properly and should not have any issues with interpreting the scancodes as proper keys) version: 0.18.4-alpha.1 on minecraft 1.20.4 used with: litematica 0.17.3

upon attempting to use keys from f13 to f24 to set a hotkey, no input is registered at all. other keys work completely fine.