A axis question?

I am trying to get a new TLC rotary working, its connected to my A axis on my C3D LaserBoard.
Settings have been done to the best of my ability as per the documentation for rotary setup both here and at the LightBurn docs.

In LightBurn when I create any rectangle over 81mm high I am getting a Cut may be out of bounds warning.

Is there anything in the C3D config file that would cause this? Do I need to specify somewhere what the max of my A axis is?

I am also experiencing pauses of the drive motor at intervals along the length of the rectangle.

I have also posted about this on the LightBurn forum here but the mystery continues…

I apologize in advance if I am posting this in the wrong place but it seems like it might be a LightBurn + C3D issue.