Fantastic job, you clean negetive extent from your models, but I think you shouldn't have done it because i worked on my mod and tried to fix all problems from sanity check and the result was terrible, unfortunatly in game the game merges extents together. For example when a peasant builds a building some part of birth animation goes on units that they don't have negative extents.
However I think we shouldn't fix all things from sanity test such as negative extents and same animation tracks.