DFSave planes

[gcode]

A co- worker has 4 planes in a file

DFSave
DFSave-1 thru -3

a report on these planes says they are used by drafting

Any idea what causes them??
I can't recall having ever seen one.

[gcode]

There are a bunch of posts about this on Mastercam.com going back to 2015.
It is a bug related to the creation and editing of ordinate dimensions.
It was fixed in 2021.
My co-worker is using MC2023.. I don't know if he's working in a file created
before the bug was fixed