Depends if you want to or not. When crafting, there is a check box saying if u wanna keep the existing uv or not.
If you want the UV to be transfered make sure the box is checked that says something like 'apply unique variant' or 'transfer unique variant' and it will have the same uv on it when upgraded.
Depends if you want to or not. When crafting, there is a check box saying if u wanna keep the existing uv or not.