The following abilities can NOT be set with /aaction (or /additionalaction). And yes, I checked to make sure the syntax and everything was correct (as evidenced that it works at all with any actions at all ever):

"Brand of Earth"
"Brand of Fire"
"Brand of Ice"
"Brand of Lightning"
"Brand of Water"
"Brand of Wind"
"Byregot's Blessing"
"Careful Synthesis"
"Careful Synthesis II"
"Flawless Synthesis"
"Hasty Touch"
"Piece by Piece"
"Rapid Synthesis"
"Tricks of the Trade"

This WOULD be a nice feature to macro turning on/off several additional actions for crafting classes since you need different actions for different recipes (notably of different difficulties), but since half the abilities you would want to cross class you need to put in manually still, it's kind of a bust.

Could you please fix this? This issue appears to occur 100% of the time for these actions, regardless of what crafting class you're on.