If you teleport players during the same frame as OnDeserialization it causes unusual behavior, the player seems to get caught on geometry as if they simply instantly moved there in their playspace. Currently working around this by calling the teleport method using SendCustomEventDelayedFrames and delaying it by a single frame. Unsure if this is the result of the player teleport occurring on the same frame as the OnDeserialization or specifically as a result of invoking VRCPlayerApi.TeleportTo as a result of the OnDeserialization event.