not completely understanding what your saying but to recap it sounds like you had a faulty door catch and now after fitting a new one you have to move the door to make it work
If yes then you have to understand how the lock works. As you close the door the hook engages into a plate and slides to the left or right (depends on machine) this plate has a small square hole in it which lines up locking mechanism. if it does not line up then moving the door slightly normally makes it latch
In the past I have used various fixes to cure this. most of the time I find If you can find a way of making the door hook go in a bit deeper it cures it but its a lot of hit and miss. You also do not want to stop it latching as if the door opens when the machine is in use its very dangerous
Dave