It has happened on more than one time that I will be in the midst of fighting the Abomination and suddenly his introduction screen appears again. The game was still going while it's happening and I was unable to move during that cutscene. The first time it happened in my playing history, I was promptly killed. The next time it happened (today), he showed again and I was having to fight 2 Abominations! It kept glitching his armor and health stats as well.