Blood Pact not working properly?

After casting Mutilate on a False God twice (with both spells dealing around 30M damage) while having Mortem in my party, Attacks from my party members was nowhere even close to dealing as much damage as they should have, even counting defense (one attack dealt 2000 damage or so, for example). I might just be being dumb but I wanted to make sure.

Thanks, fixed in the next patch!