Why isn't the actual slanted path shown in lcnc's axis interface?

The pink lines on the left show the actual tool tip positions recorded as gcode is executed (this includes all the calculations that happen in the custom kinematic)
The white lines on the right show the preview which is created from a dummy run of the gcode by the interpreter when the gcode is loaded. This interpreter has no knowledge of any custom kinematic and lives in trivial kinematics only.

Apologies, I forgot:

For this you need to change this line in the [DISPLAY] section in the file '5axis.ini'
From this:
GEOMETRY = XYZCBW

To this:
GEOMETRY = XYZ!C!BW

Duplicate topic deleted.
Thank you.