Calibration using the triangle does nothing to calibrate the Z position.
Is your Droid clamped down and leveled with your work surface? Make sure the work surface of the material is not teetering.
To find where your Z position is at do this. Use simple trace, layout a 6” circle. Set Cut height in Tune to say .0625”. Start a dry run and pause while cutting the circle. Measure the tip height from the work where it paused. Alter your tune setting to get .0625” in real life at the tip. The diff between the numbers is what you’ll need to offset your tune settings by to get the cut height what you really want.
The new self leveling feature works real well to comp the Z throughout the part cut and account for things being askew.
I ran a test again with your own DXF file, the first test the torch acted as if it forgot to self level on one of the cuts half way through the programme, but the next time it moved it was fine.
I ran the test again with no issues. So intermittent.
I’m yet to update firmware as I’ve only got a 4gb usb stick ATM.
Torch height is 2mm and every new cut the torch touches the plate and lifts 2mm.