I run a minecraft bukkit server, 1.7.10-r3 with a handful of plugins. There is a specific location that players get teleported to at random times, sometimes it's only once in a few hours, sometimes several times per minute. There is nothing in the server console, I dug a hole down to bedrock under this location so that when players get teleported there they die, allowing me to see when it happens exactly. There is absolutely no pattern whatsoever as to when this happens and it's extremely annoying. Any ideas?
Just in case anyone else has this problem, I had a command block set to silently teleport people to that location. I dug out around where it was and confirmed there was no way it could be activated. People continued to get teleported anyways, but breaking the command block fixed the problem.
I never figured out what was setting it off.