Two models in animation, one flipped around pivot

Hi, I have a model that I made in blender along with a few animations, it is basically two hands, that are animated to do a running animation and things like that. In the animation in blender, the hands are both facing forwards, but when I look at the animation in unity the left arm gets flipped around the origin for some reason(see pic). I have no idea what has caused it.I'm not sure if you'll need any of the following information, but I'll put it in here just in case. The model is saved as a generic rig type with no root node as it caused my animation to not work as intended. I have messed around with all of the options in the animator section, and nothing has worked.

Thank you in advance!