Thanks for the help in advance!

I have a VMC15-XT that is new to me. I started by running a quick test cut, a simple 0.75" cube using Fusion360's generic Fadal post processor. I'm getting an oddity at the entry/exit point of the cut.

All dimensions are spot on at 0.7500" EXCEPT between the start of the cut and the corner. It's obvious to see in the picture attached.

It's 0.050" leftover that's not being cut. It's consistent and repeatable.

To make it more confusing, I did an identical cut, but had the entry point on the y-axis face, and the same problem happened on that face.

I've checked and rechecked my backlash values, also checked my thrust bearings and those are both good. I've also checked the gcode, and it seems fine.

I'm wondering if this is a post processor error, or if there is something off mechanically with the machine. Any help or guidance is appreciated.