Problems with animation in Unity?

Question

Unity

In assets, the animation plays correctly, but when transitioning to animation, there is a problem, namely, the hand scrolls 360 degrees and falls into the desired position, mb this is due to Mecanim's automatic transitions, since this happens precisely during the transition between clips and individually the clips play right. Tried to bake the position and rotation but it doesn't help. Someone met with this, is there a way to fix it?