Also avoid Epomaker, had the same issues, but needed a full reflash (every other day), losing all my layers etc. (The import function was broken lol)

turns out it was just me not knowing my keyboard has full qmk support and can be configured via usevia, what N-key rollover (NKRO) is.

my keyboard is actually r65 by royal kludge i got that wrong!

I was gifted this keyboard and i just love its feel.