2023 backplot on axis substitution is messed up. D-48091

Looks like you are starting your thread with two different Z values Z.3214 and Z.3

You could try an asterisk In front of the sgplane *sgplane

Many "Power Users" get used to using the "Hide" command (ALT + E). When using "Hide", if you have any geometry selected on the screen, this becomes your "displayed" geometry, and everything else is temporarily hidden. Pressing ALT + E again, un-hides everything. There are a couple useful commands that go along with "Hide", but they are not in the Screen menu by default. (OK, X9 gave us "unhide some" in the main menu at least). So along with the normal "Hide" command (ALT + E), Mastercam also has "Un-hide some", and "Hide More Entities". Both of these commands I find to be extremely useful, so I map them to the F11 and F12 keys on my keyboard. I also customize my Right Mouse Button Menu, and add them to my "Screen" fly-out menu. I use these commands a lot...