Character Creator to UE5 retarget problem - Character's IK doesn't work

Development Character & Animation
1

Hey all. I rigged my character with the AcuRig auto rigger from Reallusion which weights it to the CC4 skeleton. I’ve got everything set up properly in the IK Rig, but for some reason when I try to retarget, my character’s arms jump into the air and he looks like he’s doing the DaVinci Man pose. Here’s what my character looks like after I’ve setup the IK RIG:

AcuRig_IKSetup
AcuRig_IKSetup1920×1080 154 KB

And this is what happens if I try to retarget from UE4 or UE5 Mannequins:

AcuRig_Retarget
AcuRig_Retarget1920×1080 156 KB

If I turn off IK on the hands and feet, then the character is about head height on the UE4 mannequin, but in the correct A-pose. Obviously that doesn’t work either.

Anyone know how to fix this?

2

It turns out 5.5 retargetting is broken. I switched back to 5.4 and everything works fine without issue. Thanks Epic!

3

Hey TorQueMoD.. your second image you can go to Post Settings and add Pin Bones, Pin your IK
bones to mesh bones LeftHandIK to Lhand etc.. Took a while to figure this out and actually found it
when I created an auto rig.. Hope this may help..

1 Like
4

Thanks for that. As I said, I didn’t need to do that at all with the exact same FBX file in 5.4, so I’m still taking the stance that Epic broke something in 5.5. It is, however, awesome to know that this is an option if I run into the issue in the future, so thanks for sharing :slight_smile: