Anyone else have problems with their locks?

[FLYNAVY30]

Ive got a 1972 C20 suburban, and all 3 of my doors have the same problem. I can lock the door by pushing down on the plunger, and if done from inside, it locks fine. But if you do it with the door open, and then close the door, it pops up.

If you try to lock the door from the outside with the key, you can turn the key, but the door won't lock.

The best I can do is lock both passenger side doors from the inside, then go out the drivers side door, but theres no way to lock it.

Anybody else have similar issues?