Playing an illusionist vampire, i keep having lvl 51 foresworn briarhearts resisting my dual casted fully upgraded frenzies. I installed the warzones mod which adds some very large battles ideal for frenzy. I dual cast it on a group of level 50 foresworn and they all resisted. Confused because i spent a lot of skill points to get what i thought was nonresistable frenzies, i went into the ck and upped the level of frenzy to 30. I then went back in game and cast this modded frenzy single handed and it did effect them as expected. Thinking dual casting was not working i cast invisibility on myself both regular and dual casted. The duration did double for dual casting.

Am i missing something? I then went and took out all my mods, thinking i must have had a mod that was causing the problem and would reinstall them one at a time until i found the culprit, but even without the mods it still did not work. Is this normal?