Not sure what kstars version you're running, but 3.5.0 (Beta) for Linux does not seem to exhibit any problem showing correct HA values in the position tab under details. I get positive values right of the meridian when facing south, and negative values left of the meridian when facing south. This is proper/expected behavior when using +/- 12 hour HA values (as opposed to 0-24 hour values). Cheers, Doug