so I have this lock from Varjeal's package.following his instructions, and took the core out

I remove the last three pins from the top and bottom and the springs.
so there are two top and bottom pins in the first two chambers. I replace the core at an angle like the instructions, and then turn it back up right. Then I put the cam and the screws on the back. Just by hand,

at this point everything is as it is supposed to be

then I lift the whole thing up to screw the screws in with a screwdriver
the whole core starts to slide out, and before I knew it there was a click and everything was stuck.
