Crashing On Animation Retarget

Before anything here is a Crash Log File from the most recent crash.

I’m trying to retarget animations from the mannequin to another skeleton and the engine crashes every single time as soon as the retarget completes (so that assets don’t get a chance to save). I’ve successfully retargeted many times before on different skeletons with the same heirarchy, so I know many of the best practices for retargeting.

I can provide any other information needed upon request. Any ideas what sorts of things I should check/troubleshoot to avoid this crash?

Any news on this? im using 4.18.3 and im getting a crash error too

hlo?got it working?i have same issue

Also have this issue with retargetting a Paragon character to ALS, Advanced Locomotion System, in UE 4.23. The editor crashes wildly upon retargetting