Sounds like the blaster Burn bug might be back. My Fire tank was fine last night though I wasn't exactly paying attention. Haven't tried my Fire/Fire scrapper since I19 hit yet though.
An Offensive Guide to Ice Melee
I saw myself take 140ish damage when I pressed burn. I thought maybe the level 24 boss I was killing got a lucky hit, but now that I think about it, no critter 26 levels under you should be able to hit for more than 10 damage. It must have been damaging me.
I've noticed it to after I19 dropped. I just thought it was my imagination.
Elec/Cold Troller AV/Pylon/GM/TF/SF Soloing Antics
everytime...he gets me everytime.... DAMN U BOOMIE
-- _Ilr_
Take the Magic: The Gathering 'What Color Are You?' Quiz.
The proof............
The first burn is with fire shields on and the second is with them off.
Elec/Cold Troller AV/Pylon/GM/TF/SF Soloing Antics
everytime...he gets me everytime.... DAMN U BOOMIE
-- _Ilr_Take the Magic: The Gathering 'What Color Are You?' Quiz.
Oh that really sucks 
It works fine with my Brute.
It is happening on all my /fa scrappers, just not every time I drop burn. Dont have it on my tank to check.
Anyone notice that when you activate burn you actually take a little damage yourself? Noticed this yesterday on my Spine/Fire scrapper, everytime I activated burn I would take something like 45 damage. It only happens once after activation, but still I think it is something they didn't intend to happen... hope I don't forget about it at a bad time lol