Deep Sky Dd FP1 Flat box error

I have a flat box DeekSkyDad FP1, latest drivers installed, but throws an awful error where setting the light level using the cursor.

I have latest 4.2.0.1158
Windows 11

It works well in nina for information.

Bruno

This repeatable? Have you contacted the driver’s author? SGPro does not have specific code to deal with individual flat boxes as it just implements the standard ASCOM contract for CoverCalibrators. The error you show above is not generated by SGPro. SGPro just receives it from the driver and displays it so we don’t have much context with regard to its meaning.