Never seen this in 40+ years!

Technique even works in other areas. Over Dunn Edwards paint on
interior surface, skim coat using Home Depot premixed ?? in 1 gal
container. this time about 1/16 inch thick. Come back in 3-4 hours and
find the coat dried like a lake bed, curled sheets of around 4-6 inch
sizes, and fell in a pile on the floor! In other areas of home,
technique works beautifully, and surprisingly feathers in AND touch up
paint using from same lot bucket makes invisible repairs.

Did very conscientiously and again coating doesn't want to adhere. If
keep pressing flat onto the surface stays put, but cracks still form,
fill those and keep pressing. It's almost like somebody took an air
compressor and blew the coating off the wall. Strange. Should the
surface coating applied to be absolutely dry? Sometimes dampened, not
wet, in an attempt to prevent the bottom surface from sucking moisture
from coating.

Any ideas on how to increase adhesion? Add water base glues?