There is a Problem with the "Meshes to Hide" in the BaseLoadoutClothComponent. You can not set Priroity and it will override by other Items.
Example:
If you equip a T-Shirt where you can Hide (Torso, ArmUpper_L and ArmUpper_R)
- it will work if you equip only the Shirt. But if you now add a Vest, it will override the setting.
This will only work if you equip the Vest first and then the T-Shirt.
It will be good if we can set the Priority of the Meshes to hide, so it get not overwritten by other Cloth components.