Black Artifact Glitch Below the Player

In this bug, black artifact flickers appear on the screen right below the player’s avatar.

To trigger the bug, the player just needs to walk over a sloped surface — in the case of the videos, a model. The glitch happens while the player is moving on top of it, and the artifacts only stop when the player stops walking.

I recorded these two videos to show how the artifacts appear depending on the player’s camera angle.