Hmm, curious, I get the exact same problem with the Filter Wheel program.
I know this is a bit of a side step solution, but as Artemis Capture seems to work control the filter wheel without any problems it may be worth using that? or other third-party software that should support through wheel through the ASCOM driver? I'm not sure if the stand alone Filter Wheel program is fully supported any longer, or if it was integrated into Capture.
Jo