There’s a surprising amount of “known bugs” in the warlock world. Surprising in that I didn’t know about that. I wanted to compile the list in one place so I could keep track of them.
Shadow Embrace race condition. Only one Shadow Embrace debuff can be on a mob at a time. So if you have more than one Affliction warlock in the raid that’s spec’d into Shadow Embrace, then the first one to get one onto the boss will be the only one to benefit from the damage increase. Warlocks without the stack lose ~2-3% dps. This is noted as “fixed” in patch 3.0.8.
Immolate dropping. If you refresh immolate before the last tick has gone off on a boss then only the direct damage portion will hit the mob. The dot will fall off and not refresh. It -seems- that this may only happen when the first immolate is effected by a spell damage increasing effect. The second dot has lower spelldamage so essentially runs into the “a more powerful spell is active” and the dot falls off rather than refreshing. I haven’t seen reference to a fix to this bug yet. It may end up as “working as intended” and you just can’t overwrite a dot with a lower spell power dot. I guess that’s good…
Felhunter not attacking. Randomly it seems the felhunter will stop casting Shadow Bite and just stand there. I haven’t seen reference to a fix to this bug yet. My felhunter is doing craptastic damage (~120dps). Also, the Shadow bite doesn’t seem to be getting the +5% damage/dot on the mob effect.
Everlasting Affliction refreshes Corruption at the lowest coefficient. When EA refreshes your corruption it uses the base coefficient for spell power instead of the coefficient it should use based on your talents. This is noted as “fixed” in patch 3.0.8.
Haunt not working on second mob. Situation: Haunt and then dot mob 1, Haunt and then dot mob 2. Haunt #2 causes haunt #1 to expire and heal you but haunt #2 doesn’t seem to do anything and when it expires it doesn’t heal you. This is noted as “fixed” in path 3.0.8.