Spec’ed Frost Mage. Using the ‘Brain Freeze’ talent (Frostbolt has a chance to reset remaining Flurry cooldown and cause it to deal increased damage) plus the ‘Perpetual Winter’ talent that gives Flurry two charges.
When using the above setup, the expectation is that a Brain Freeze proc will reset one of the Flurry cooldowns thus giving us an instant use of Flurry. This is currently not occurring SOME times. I have not figured out exactly what causes the issue, but very often, when both Flurry uses are on CD, a Brain Freeze proc will occur (buff appears, UI indicator appears) but Flurry does not gain a charge / the remaining cooldown stays in place.
Yes can confirm that it happens for me too. Brain Freeze proc Flurry but sometimes unable to cast the proc Flurry. It seems to do with the CD. As long as on CD even with a proc Flurry available, that flurry cannot be cast till CD is over. Am on Venthyr.
Thanks to this post, I have narrowed down the bug to 100% certainty. I was going mad because I was missing shatters and GCDs due to not actually having Flurry charges.
The problem is this: Mirror of Shadows procs give you Brain Freeze but DO NOT give you a charge. If you have 1 charge, you will gain Brain Freeze, and remain at 1. If you have 0, you will gain Brain Freeze, and remain at 0, but the icon will glow and will throw you off since normally it can only glow when it gives you charges.
Double RIP for Glacial Spike too since you will shoot an unshatterable Glacial Spike a lot of the time. And you will waste a GCD pressing a button that does nothing, leading to tons of lost DPS.
This has been driving me mad. I am so glad to find this, because 3 days ago I was wracking my brains trying to remember if flurry always had a CD after brain freeze procs. Been a minute since i played and thought maybe i had just forgotten. Its seriously cramping my style.