Preface
I am a classic andy, and I have always mained mage. I’m excited to have the addition of heating up in the fire tree because this is the first spec I plan to level and play.
I have reported this bug multiple times in the actual beta, but the character limit prevents me from giving a full explanation, and I think it’s difficult for Blizzard to understand the bug. I run a scorch focused build that plays into the heating up talent. My rotation is basically scorch and fireblast to get crits and eventually cast a pyro with 3 stacks of heating up (1.5 second cast)
The Bug
When casting a scorch, I will often have 2 stacks of heating up. Sometimes I want to cast a 2 stack pyro (3 second cast), so I will preemptively be spamming my pyroblast as the scorch is casting. Sometimes the scorch will crit resulting in 3 stacks of heating up. However, the pyro that I was spamming will only benefit from 2 stacks even though I have 3 stacks. Further, the pyro eats the heating up (with max stacks) as if it was a 1.5 second cast when it is not. This is some sort of timing bug that SHOULD NOT happen. Scorch is not a projectile, and it is critting immediately as the cast finishes.
This bug really breaks the flow of fire casting as I have to stop the bugged 3 second cast to cast the correct 1.5 second cast pyro. I am begging Blizzard fixes it.