My Character Model Has Some Kind of Anomaly. PLEASE HELP!

Hi, I’m new to Unity and the forums, so i’m not exactly sure how to describe something like this but hopefully someone can help. So I am making this wizardry game and i have this wizard character model, however i think i may have accidentally clicked something i didn’t want to because now when i play the game, parts of his model seem to protrude from his “normal” model. Its very hard to describe so lets just say it doesn’t look natural. The anomaly doesn’t show very much, however when i walk around it becomes much more apparent. It’s as if parts of his model have been pinned and it looks like a spike is coming out of his back, and also the bottom of his shirt doesn’t wrap around his pants like it should, it’s very hard to explain without pictures but it wont let me attach one because its too big of a file. I should also mention that the model looked completely normal before this incident, and that i am using the model “Galtrilian” from Mixamo, also that I am using Unity version 5.5.2f1. If you need any more information then ill try my best to give it (keep in mind i am not a professional developer and am not aware of the more advanced mechanics of unity so if it involves something quite advanced, try to “dumb it down” so that i may be able to understand the issue better. Any help would be greatly appreciated, thanks!

FIX: The quality of my skinned mesh renderer must have been tweaked some how because setting it from “auto” to “4 bones” has fixed the issue.