I was streaking in a spar room and eventually everyone left but this one guy who kept joining even though I beat him easily every time, I was irritated since it was just free wins and didn't count towards the streak I had, so to avoid it I clicked "yes" on the continue sparring screen then ran out of the room but even when I was out of the room it tried warping me in the match and ended up bringing me into eternal darkness and giving me the loss.
Not sure if anyone else has experienced this but just thought I'd let you know sometimes players can get warped even when they aren't in the lobby.