Hey sorry for late reply. I haven’t solved the problem fully but have some observations.
First of all, a fun fact - it used to work fine in UE3 due to DQS that was dropped in UE4.
Secondly, all characters from Paragon have something on the wrist (like a bracelet or cuff) to hide the deformation. It is not impossible to get rid of it however, as PUBG is handling it pretty well.
After consulting that issue with an animator he suggested to force apply 25% of wrist bone rotation to lower arm twist bone in animation blueprint. This is achievable by casting to Pawn blueprint and extracting wrist rotation from skeletal mesh component (EventGraph). Then you use a node ‘Transform (Modify) Bone’ to apply the rotation to twist bone (AnimGraph). You can also compensate for ‘shrinking’ of the skinned area during rotation by dynamically expanding scale of that bone.
Result is satisfactory but far from perfect. So I would appreciate if someone from Epic could give us some guidance.
Apologies for not providing any pictures, I don’t have any at my disposal atm.
Cheers
TO