Retargeting Animation; What am I doing wrong?!

Hey all, I’ve been struggling to retarget a set of animations all day. I have my target skeleton set up with a root and it seems to be working fine. I have rigged it using the ‘humanoid’ setting and mapped the appropriate joints. I have a set of basketball animations that uses a different skeleton. I rigged that skeleton using the ‘humanoid’ setting and also mapped the appropriate joints. I also have the default unreal skeleton that is mapped properly. So 3 skeletons total. When I retarget my basketball animations to the default UE skeleton, it works perfectly fine. When I retarget my basketball animations to the skeleton I intend to use, the animation doesn’t turn out right and is all wonky. Does anybody have any ideas as to why this is? I’ve posted a video depicting the issue below. Thanks!