Lathe operation

I am running into index / lathe orientation issue.
Here my issue, for some reason the lathe operation while making parts good does not index correctly path versus model.
As orientation of lathe operation seems to be random index does not allow to align future operation.
I do:
Index 0 → rough, Index 180 → rough, Index 0 → lathe until all good, I leave some stock for finishing with lathe operation but return to Index 0 does not match position of lathe operation.
I also noticed that lathe path does not match model orientation regaless using index.
Any idea?

do you mind right-click exporting your workspace and sending the .kmz file to me either via DM or email to [ sa at grid dot space ] ?