While making new IK animations for heavy items I found that even vanilla ignoring finger frames in IK anim of 2 handed heavy items. Normal 2 handed items works fine.

For me it looks like game engine ignore additive part of IK animation with fingers transformations.

In blender looks wooden log IK this way

In game

As you can see fists of player it looks like ignore fingers and there is default idle anim for heavy items.

Please fix that.
Thank you