Animation importing error: <insert bone name> track exists in animation but not into skeleton rig

Yeah I don’t know what’s going on I updated to Unreal Engine 4.20.3 and now it just poopoo 10683523085623056 on itself when I try to import animation from blender. I am using the same rig as I always was and suddenly it started saying “Animation importing error: <insert bone name> track exists in animation but not into skeleton rig” for every bone. It also renames the bones. (for example, my head bone is named “Mixamorig_Head”, but In the output log it says “Head”) Pls help for the love of jesus christ Me and my animator have made so many animations for it and I hate retargeting. Thanks 096578569078590678