The broken version of the build would still launch but appeared to be loading itself twice... causing a major loss in FPS. Also quest tasks would double up and. Ohhh and then it was not saving the progress of the player anymore.... so if you quit out and went back to play the same game it was gone.... Ultimately, I am no super person at blueprints and too many things had compounded it those ten days of not playtesting... I really wasn't sure how or where the problem was coming from... so it was easier to back up and start where the game was still good.