I have the skill on mousewheel down. If I hold shift or control it will not cast and I don't know why. I don't have this issue on any other spec in the game, including Devastation. This is the exact macro I'm using and it doesn't make sense as to why it will not cast at all if shift/ctrl is held down:

/use [nochanneling,nostance:1]  Black Attunement
/use [nochanneling,noknown:414969]  Eruption
/use [nochanneling,@mouseover,help,nodead,known:414969][nochanneling,@Babyfat,help,nodead,known:414969]  Emerald Blossom

Again I do the same thing on other specs, including Evoker specs, on the same keybind and holding shift does not negate the ability like Augmentation is currently doing. This macro also sometimes breaks Time Skip's channel despite me clearing having nochanneling in it.

Also sometimes when I'm rapidfiring my GSE macro on characters it will not detect me holding shift/ctrl too (for conditionals like [nomod]) and sometimes even ignore conditionals like [@target] (and [nochanneling] still breaking Time Skip like I mentioned above) and cast on myself when I don't have a target. I wish I could better diagnose the causes of these things but there's a lot of tiny things that are happening and don't make sense.