VTK - does not rendering rotation correctly from load

[joco-nz]

VTK will correctly render rotation when starting from a rotation of zero, loading in the gcode then applying the rotation (15 degrees in thius example).

When rotation already exists in the wcs and a gcode file is loaded it will render the rotation as an over rotation. It appears to be double the rotation. i.e. 15 degree in wcs is rendered as 30 degrees.

Example when loading and applying the rotation from R0 to R15

Example where wcs already has R15 in palce. The open gcode has been closed or linuxcnc restarted and the new gcode is loaded.