Hi Steven,
We haven't found a workaround yet, but I'd suggest that you work with supercontrols and subcontrols and map to the VOLUME (if you need to make another track, do) instead of the mute buttons, if they act weird... my understanding is that the mute buttons are fine but that the solo button doesn't feed back directly.
Let me know if these instructions help move you further ahead. If not, I could give some more concrete examples.
Thanks!
Dan