While in gravity on ships, walking across non-cube hull blocks sometimes causes gravity to neutralize for no reason. To reproduce, step onto the diagonal side of a wedge or tetra while in a ship's gravity. This happens more frequently if there is a block overhead (such as a 3m high wall made of a wedge at the bottom, a cube in the middle, and a wedge at the top. This bug may occur more frequently on docked ships, but this is uncertain. I have not observed this on stations so far.