I believe this belongs here because after over 200 waves (wave 25ish each run) of Misty survival I've yet to see a single Frost Blade drop. I've been told if I'm not seeing at least one every few waves something is wrong, so going over 200 waves seems rediculous.

I have the Holiday Extravaganza DLC and I've completed it on hard mode.

Is it possible my account could have been bugged after doing the DLC with a friend before I purchased it for myself? I've done it again after purchasing the DLC for myself but something is clearly still wrong here.