Join Date: Mar 2018
Location: Huntington Beach, California
If I had to guess the ceiling was painted with an oil based paint. Then you put the new stuff on. The new stuff is not going to adhere very well. You probably can rub the paint off with your fingers.
Go back to where you bought the paint. Find the old phart that has been working there forever and ask. The advice that you get is far better than anything that I can tell you.
I think that you are going to have to remove all the Sherwin Williams Super Paint flat that you put on. There is nothing wrong with the Sherwin Williams Super Paint flat but that the surface wasn't prepared properly. No matter what you put over the Sherwin Williams Super Paint flat the adhesion between the current two layers will fail.
I know. Sorry that it isn't what you wanted to hear.
In furniture 1/32" is a Grand Canyon