I was talking with someone around Flourite Plains, I had trouble with the internet (crashed 12 times in total) and at the 6th time, when I logged in as the same character, there was a duplicate of myself that lasted several seconds until it disappeared. It spooked both myself and to the person I was talking with, so it wasn't something only I could see. The time the duplicate disappeared, the arrival chat said I have lost connection, I guess I had a crashed instance of the game still running that time.
Eeehh, other than that, I guess there hasn't been anything else.