I found out that the animation you select when using FABRIK on my pose is affecting the way FABRIK move the joints with certain constraints.
However, I found here that FABRIK does not officially support constraints and even if it does, I have found no documentation on how to set constraints for FABRIK.
For instance if I have two characters with the same code and BP, but they have a different rig with some hidden constraints profile, then one character would bend it’s pelvis when trying to reach an arm IK, and the other would just move the arms without bending the Pelvis.
Could it be this information is inside the animation file and is not accessible from the Unreal Editor?
That would mean I need an animator to solve this.
For the very least I would need a way to disable FABRIK from using the constraints in the animation file, or at least the source code to edit it myself.
Any solution for this?