this is intersting Dana. I had some cement block painted inside and outside with latex primer + paint (I just learned there is no latex in latex paint, hence the confusion!)
and it blistered outside in a handful of areas. Since it's a 90y old house, I suspect there's plenty of oil paint underneath. We had scraped it last year wherever it was blistering, and it was a lot! the new paint sticked well except a couple of spots this year came off. job was done on a dry day of course, i planned to have the wall as dry as possible before starting work.
now at the interior the wall was painted the wrong color. I gave them a new bucket and said "back to work"
however, now the wall looks terrible (also cement block but the interior side, no stucco) the paint cracked everywhere. it looks like a map of some wet land ;-)
did this happen because they didn't wait long enough before applying the second coat?
See that's one of the things I never seen happening with european paint. something must be different in the mix! also the paint here creates a like skin that comes off if you use the roller over it before it fully dries. again, never seen before...extremely weird for me!
When I bought epoxy based "garage floor" paint, this didn't happen. AND I immediately recognized the smell, that's the stuff we use back home!
but I am still puzzled what the difference is?