pva it the day before to much background causing your problem mix pva 50/50not sure why it happens! Could it be that yesterday was very hot? 26 degrees? I properly pva’ed it and waited until it went tacky, by the time I plasteted that section of the wall the pva would have dried, could that be it?
edit: they little crack marks feel completely smooth, they arent actual cracks they just look like it..
pva it the day before to much background causing your problem mix pva 50/50