Can’t draw alpha in front

Helo, I can’t apply and alpha in front of the t-shirt, when drag in front appear on the sides and interior back.
What I’m doing wrong? I’m blocked :frowning:

Any idea why? Still blocked on this :expressionless:

If you can, try to paste the mesh here so that we can test.

Attach the mesh. In 1.77 seems that work, it’s on 1.76 where I can’t draw.

mesh.nom (1.4 MB)