I'm trying to put the bear logo on my jacket's sleeve. I put the UV maps of the jacket (UVMap) and logo (UVMap.001) in the shading and mix them together. Also, I added a new UV map and unwrapped part of the jacket for the logo. However, they couldn't mix together in the flat viewpoint shading.
When I select the jacket UV map, the preview shows the jacket UV with the jacket UV on the sleeve.
When I select the logo UV, the jacket will become transparent with a logo on the sleeve.
It is successful to see both UV in the lighting shading mode.
I am making an anime character with flat color so I don't know if it affects the final look if I use lighting mode. Although there are two different UV maps, the mesh of the sleeve shares the same area of both UV maps and I don't know how to separate them.