hi guys.I have a project I am working on one a half months,I was coming to end but i have a problem now.I did the body of the character one tool and I made the head sculpt in second tool and than I made all of them unwrapping and decimation(head tool).Now,i want to merge visble head tool because i want to do append head tool to in body tool.But when i was merge visible head tool (uv panel on ) i lost some uv map what can i do that can ypu help me ?