Laser engraving repeatability

Continuing the discussion from Swift Pro keep skipping gear around point A, laser engraving position cannot repeat (solved):

Not sure if this problem has been solved by anyone, but when engraving, the first pass will work but a second pass ends up 1cm out of alignment from the first. Successive 3rd and 4th passes follow the exact (within tolerance) path of the 2nd pass.

Is there a way to ensure that the first and second passes stay in the same position?

There are other backer reported the same issue, but it doesn’t always work like that. Could you please give us more details about the process before the issue comes out? Thanks