I've found references to a shadow dance fix, but I can't find the fix itself.
I have tried to remap the bar state:

My shadow dance bar is still blank. I have also tried to de-select shadow dance from the preset action states to see if that would help but it did not.

It looks like Shadow Dance is actually using the state "Stealth" from the manual states on the individual buttons:

These are not the abilities actually present when I'm in my normal stealth state. Using this I can copy the /cast etc from the desired states as a work-around.