This is a problem since day 1.
Desktop Max, 6" indexer purchased a couple months ago. Newest version of gearmotor.
FWIW, the instructions to set the step value is wrong in the install instructions. SB calls for 40, which is the old gearbox, but the actual should be 83.3333

When a program is called up, the A & B location changes. The indexer also rotates to match the value.
This pretty much looses the registration, and if makes carving with a rough pass and follow with a finish pass pretty much impossible.
No matter what number is in the Z value, the B will rotate to match.
If the Z is at zero when I start the program, the B rotates to .5 which is the value for Z safe.
Anyone else have this issue?
It is hard to believe that I am the only one.
If you had this issue but fixed it, what was the fix?

Shopbot support has been working on this for 4 weeks now. They think it is in the post processor. Hopefully they will get it sorted out.