Strongboxes are lying

This is yet again another time a Strongbox said "Contains an additional Unique" and dropped zero uniques. I also had the unique strongbox with 34 packs guarding it, that only gives you 1 unique not drop one as well. Loot is Hard enough without the game withholding the unique when it says it is guaranteed.

I agree, I never touch strongbox again after none drop everytime.

If nothing else strongboxes can spawn rares