Starting a bit after midnight, the animations get buggy. My character will look like standing idle while actually moving, and jumping will send him flying forward, then spring back to the proper position. Other players' characters look normal, except when jumping, then it sometimes looks wrong too. Combat animations like attacks and blocks are fine though. This only happens at night and doesn't stop until the next day. My ping is no different from what it is during the day, which is around 60-70.