Missing 600k of damage in STR

Can anyone explain this to me? I'm missing 600k of damage on my total. I'm aware of the opposite happening because things like expose damage, DoTs, and death make not being attributed to the individual toons but I've honestly never noticed being so obviously short at a glance.

Are the individual scores including damage to adds? I'm just guessing I suppose it's possible I'd did 600k of damage to adds.