Buggy Yeti and Mugato Enemies in Missions

explorer1111

I was playing in Q's Winter Wonderland and I entered Winter Invasion. The mission works really well but when you engage the Yeti off to the side instead of just running at you and attacking the yeti glitches and seems to constantly run up against something that is not there while still trying to do animations. I also looked into the Mugato that is present and off to the side in the PvE Colony Invasion and the same thing occured but this time with the Mugato. Please fix. Thank you.