Paint delamination touchup, what am I doing wrong?

413 said
So this is a 2007:vehicle with original paint

I'm 3rd owner, no reason to think or signs that it is not OEM paint.

413 said
What are the brands and type of paint and primer you are using for touch ups

Duplicolor touchup
Eastwood self etching primer

413 said
what did you use on the Jeep that turned out good

Don't recall the primer, duplicolor touchup