I have keychron c1 and i cleaned it today by taking off all they keys and soking them in water. Then i just cleaned all the gunk from the “?backplate?” with cuetips. Then i let the keys dry and inserted them in and now when i press the number 6 key the output is 6 followed by 7. So if i spam 6s it outputs 67676767676767. Also sometimes completely randomly when i press backslash It also outputs the number 7.

Could it be that some water got into the pcb and its shorting the contacts?