I'm painting newly installed drywall with Behr "new drywall" paint, which has been working great for a couple of rooms so far. For some reason now, on a small section above a door (about 2' X 1'), the drywall paper wrinkled or something, and now has ridges. It is visible from a few feet away.
What's going on here? Did I put too much paint on and the paper got wet? How can I fix it?
I thought about skimming it with a coat of mud, but I want to see if anyone has a better idea. I suppose it could flatten itself as it dries, but I doubt it.
Thanks in advance.