On my second coat now and what I find strange is my first coat went on beautifully and now the second im having a few problems, when painting im getting streaks of paint coming of the edge of the roller, as if it builds up on one side and then falls out this doesnt fully dissapear no matter how much I roll over it after. So it leaves roller marks.

Also when I apply mineral spirits on the paint to try to help it level out it sometimes takes the paint straight off leaving a strange rough patch.

Anyone able to explain either? Ive been using 10% mineral spirits to the brightside (20ml mineal spirits, 180 brightside) also tried increasing the amount of mineral spirits to no avail.