if you fall from a large enough height that you damage yourself on any blocks you hit on the way down, when hitting an object, you have a chance of clipping through the floor. It first happened landing on a sideways pillar on accident in an online match in the borderless arena. I was able to replicate it by double jumping, then landing on a knocked over, ungrounded wall in the training section with the bot. it seems more consistent in specific parts of the map, but I would need to test it more. it seems to have around a 20% to 25% chance of happening depending on the location. I run the game on a pc connected to a quest 3 by wire. Thank you!