I had a problem where it was taking 2 or 3 pulls to get the primer out of 9mm cases. The first pull would pop the primer sideways but not out. Out of frustration I pulled the die apart and I figured it out. I had broke the primer pin on a crimped case and had replaced it with a smaller one for a .223 rifle die. The pin had worked fine for a couple months before the problem started.
Sometimes we're our own worst enemy.