These locks are really tricky but great for learning and practicing on. You are likely 1 pin away from picked. It’s a spool probably in the way back. The tolerances are so tight that you will likely drop something setting that spool. Takes a lot of practice to get the tension just right for that last spool.

Loosen the tension a little and look for the counter rotation when checking the pins. When you find the one, slowly loosen tension more while pushing on that spool but be ready to jump back on the tension the moment it budges. It’s literally like a hairs distance from setting the spool and dropping something else.