Never implied it was the duping itself that had a 'cooldown'.
It worked once for me now. It seems to have a 'cooldown', you'll get instakicked if you fail the first time.
the thread is about duping , the highlighted bold part is using
it referring to dupe so you did intend it to be the dupe which it's self does not have a cooldown. and i corrected you saying it is not the dupe , it is your game key being used twice by different names / id's which caused the kick and dont think i am having a go here i'm merely clearing up any confusion for anyone who reads the thread.
ps there is a much easier way than this method but i will be using it on bannerlord if they make pw for it , maybe i will share it then.