Hello. From what I understood, “Advanced Locomotion System v4” has a skeleton and you want to use this skeleton for your models. This is true? Most likely a problem with a group of weights. You can use this method to find weight bugs.
- First, select the skeleton then the model.
- Switch to Weight Paint mode.
- You have the opportunity with the Shift key to select the bones and see what weights are assigned to this bone. And also rotate and move.
Check all bones and whether the weights are assigned correctly.
As for the cloak, it is better to make a simulation in the UE to avoid errors. If it suits you. You can make a cloak with a fabric simulation and for this, you need to make it a separate mesh.