Factorio Forums

When bitters are trying to attack something that is above water, they disappear.

Here is the save 1) Load the game (mods aren't needed)
2) Stand still and zoom out to max
3) Watch a group of Behemoth bitters above the character, they will attack distractor bots on the right side and all disappear.

i belive this is part of the new pathfinding for biters in the 0.12

Same as this. Biters despawn if they can't reach their target.