While fighting some enemies on Triton Avenue and Firecat Alley, a round sometimes ends before I have a chance to do anything, such as selecting a card or passing. The round starts, and a second later, it automatically ends, which results in passing, whether I wanted to or not. It has yet to result in anything truly frustrating, but it is certainly annoying.
I believe this is a bug that might be area-specific (for me it always seems to occur in Triton Avenue), though I am not entirely sure. This is, no doubt, game-breaking. Like many bugs and glitches in Wizard101, it has been around for a while.
This is not a problem with your PC, as my PC is very optimal at running the game, yet this bug still manages to happen every once and a while.