CaptainDeagle62,
These issues seem kind of similar. Have you tried going through the suggestions provided in [this AnswerHub post][1] or [this AnswerHub post][2]?
Thanks!
Can't package game (an item with the same key has already been added) - Programming & Scripting - Epic Developer Community Forums
[2]: Program.Main: ERROR: An item with the same key has already been added - Blueprint - Epic Developer Community Forums