I’ve noticed that after casting Arcane Surge I can’t cast arcane missiles if I have too many clearcasting stacks while using “cascading power” arcane talent and “arcane empowerment” pvp talent. I macro in using my mana gem on the Arcane surge cast and if I have 2 clearcasting stacks already it puts the 2 more I get from the mana gem as a separate buff and I can’t cast missiles until I hit about 35% mana then it uses 30% of it for a clearcasting missile. if I have 3 or more clearcasting stacks when I get my mana gem stacks then I have to wait until I’m about 50% mana and again it uses 45% of it to use the first clearcasting spell.
Just dropping either the Cascading power or Arcane Empowerment talent will fix this issue for now with anyone else who’s had the same problems