u/Academic_Grand_3338

So I made this model in maya 2026 and I have to uv unfold it for school. But when I try to unfold it, the message “Error: Mesh has non-manifold UV’s. Clean up the mesh before using unfold.” The problem is that i’ve used the clean-up tool to select all of the potentially problematic faces and it selects me nothing.
I’ve separated the head and the body to know where the problem is coming from and it seems like its in the head. I know my topology is far from perfect, there are a bunch of triangles in some places, but i’ve unfolded many models with similar topologies over the course of the year, and none reacted like this. Does someone know where is it coming from?