Extra Passes being done

Hi guys I was using the machine yesterday Its a 50w green and black with Ruida and it was
cutting 4mm ply with 2 passes which was great but I came to do the same job today and even though it settings are 2 passes it actually doing about 6 passes does anybody have an idea what’s going on?

It could be a few things. An easy one to check is alignment of the laser.

Thanks Chris the problem is more that i asked it to do 2 passes but its doing 6…but i think i know why, i duplicated the subject and then tried to move it but it didnt move properly so i duplicated again which was duplicating two layers leading to the extra passes.