Guild Wars 2

I do not know the english name (German: Früh gewarnt ist halb gewonnen, literally: warned early is half won) but it’s the underwater missions in the sewers of Lion’s Arch, during the Vigil’s story.
It’s a major drag to complete because almost every monster and your companion Forgal clips through the walls constantly, sometimes getting stuck forever. Using this thread, I’d like to say that clipping is also very common on armor/weapons. It’s no. 1 reason for ugliness in most RPGs and it would be great if you could fix it.

Had the same problem with that quest. Mobs constantly were disappearing into the world, making it quite frustrating.