Why did wick editor used to let me copy and paste key frames like an hour ago but now it doesn't let me

version 1.19.3 on stickmanred fork

it was letting me copy and paste them before but not anymore

i have done ctrl + c and ctrl + v

btw this is my first post on here so yeah

is caps lock on? if it is turn it off

it ain’t on though

oh… is it a new computer

what do you mean by new computer? like how new?