When using the SkySafari INDI driver / interface on the Avalon StarGO2 Pro, it inverts DEC values between -1° and 0°. The values become positive and the mount slews to the opposite side of the celestial equator. E.g. -0° 27' becomes +0° 27'.

I could confirm this with three stars in Pisces: 12, 13, and 14 Piscium. For the first two, the mount goes to the opposite side of the equator, for the last one it goes to the star correctly. Plate solving cannot fix this, either … obviously.

Avalon Instruments is neither answering to e-mails nor acknowledging this bug in a post in their user forum. And since I assume they are using the standard INDI driver/client for SkySafari 6, I posted the same question here.

Below a screenshot when trying to slew to Jupiter. The mount always slews to the positive number of the DEC value: