A "dirt ball" stuck on the ground

I also have jumping dirt ball in my map. It is inside a cavity, that I have not visited. As it jumps, it gets more mass. (in picture getting closer to 15 tons)

Edited February 23, 2017 by RistoReipas

What also happens is Dupes try to pick up the bouncing dirt ball and then fill toilets with the "dirt" but it seems like it fills the toilet with 0 dirt so I had all my Dupes stuck in an infinite loop running between the bouncing dirt ball and the outhouse and had to start a new game.

Evaporating contaminated water creates steam and dirt. Dirt spawning tile currently can get stuck and infinitly spawning the last amount of item it spawned. Reload fixes the stucked tile but if more contaminated water gets evaporated that dirt can spawn infinitly then. As i can see on the image you have a small amount of flowing contaminated water that flows to the hot fridge and evaporates and creates dirt.