Could be that one pin is close to the shear line already. If 2 or 3 isn't giving you fits, just start there. It's no biggie. Just start feeling for the pin that binds, then lift it in a controlled way. Feel how it moves with more or less tension. Set that one pin and release it a few times.
Discussion
Thinking I damaged 1st chamber last night with some type of bad setup I fought with. Thanks for types. Will just use 2-6 I guess. And research technique a bit
Is it the metal or plastic lock?
Metal
Definitely doesn’t feel like all 3 pins are clicking with current config. It’s sometimes way too easy to open with what feels like only 1 of the 3 solved. Anyway, will fiddle with it later when home
Dang that shouldn't get damaged that easily. If it's the one from CI, I bet they'll replace it. Your picks should bend or break before the lock does.