I started game, saw unique and boss on first level, cleaned all map and found only unique (I teleported across level around 10 minutes trying to find boss).
So I decide to restart level with Task Manager (because I wanted exactly the same level and mobs).
On second try I found and killed boss, but not unique (same spent 10 minutes to find him).
On third try my char was killed.
Please fix your game, it is irritating when mobs are gone with their exp and loot!
