Multiple engrave pieces are off center

Omtech 60W/50W CO2 laser with Mac M1mini LightBurn version 2.0.04.

I set up a jig with multiple same objects to engrave. Everything okay on first object, remainder of five of same engrave has “jogged” about 1 1/2mm to the right in each one. I have done multiples many times without this little problem. What did I screw up?

Did you make any changes since you replaced that limit switch ?

Is that a jig made from before you did the swap ?

Jig made before but I modified slightly and saved after installing new switch. Haven’t run again to see if it is corrected

Will let you know. Thanks