Nope! Not unless you completely added a new resource in that doesn’t replace a currently existing one. Just use the remap resource array in PrimalGameData_BP_YourCustomNameHere to change it from the vanilla one to your duplicated & modified version
Also Mustang is very right about creating children of existing resources. You don’t need to remap everything like Aku was saying. That would only be for adding an entirely new resource in.