I did post this on official EU mage forum, didn't get answer, so copy/paste
When playing my Frost mage, i noticed, i am loosing FoF procs. I will try explain
I cast Frostbolt and gain FoF proc (2)
I cast Frostbolt and one is substracted from FoF buff (1)
I cast FrostBolt > I get new FoF (2) > FoF fades from me > I loose (2) spells which should be under FoF effect
Log would look like:
Orisha begins casting Frostbolt.
Target is afflicted by Orisha's Frostbolt.
Orisha's Frostbolt hits Target for XXX Frost.
Orisha gains Orisha's Fingers of Frost.
Orisha's Fingers of Frost is regreshed on Orisha.
Orisha's Fingers of Frost is regreshed on Orisha.
Orisha beings casting Frostbolt. //1st buffed Frostbolt
Orisha's Frostbolt is refresed on Target.
Orisha's Frostbolt hits Target For XXX Frost.
Orisha's Fingers of Frost (1) diminishes.
Orisha begins casting Frostbolt. //2nd buffed Frostbolt triggers FoF
Orisha gains Orisha's Fingers of Frost (2).
Orisha's Fingers of Frost is regreshed on Orisha.
Orisha's Fingers of Frost is regreshed on Orisha.
Orisha's Fingers of Frost fades from Orisha. // HEY!
Orisha'S Frostbolt is refresed on Target.
Orisha's Frostbolt hits Target for XXX Frost.
****
I am still 66 lvl mage, a lot to learn, but i am troubled over this.
So please, bug or intention?
P.S. I DO care, even if frost isn't 'viable' raid spec, little bit dmg here and there lost becouse of bug... :/ (i am odd, i like frost)