Critter pathfinding bugged near the water

Maybe it matters the kind of creatures, the shape of the surface, or the purpose of their movement. Drecko were hungry and wanted to eat, and the hatches just run around and don't feel uncomfortable.

Today I found that pips can try to reach seeds that are in water deep enough for them to drown. And they are toggling between 'drowning' and 'planting seed' statuses while moving back and forth between liquid and gas tiles.