Fishjump
Active member
Certain terrain types, for example anywhere along the white wall with yellow doors behind the dummies in sandbox, will completely negate Frost Grenade from doing anything to allies or enemies if it collides with it. There are many other walls, floors, and features across both the regular map and sandbox that also do so (such as the glass storefronts to the close left of the dummies, but oddly not the similar looking storefronts facing opposite the new neutral camp room), but I think this is likely the same issue across all of them with some sort of clipping brush or the way Frost Grenade line of sight is coded compared to things like Stake.
