I was playing a rapid game and suddenly it said my opponent won in the middle of the game and the reason given was "game abandoned"? I have no idea what that means or what just happened. It was their turn and it just suddenly said I lost even though I was ahead. What does this mean?
That generally means you got disconnected from the Live server.
https://support.chess.com/article/213-how-do-i-fix-my-disconnect-lag-issues
In that game, your opponent was the last one to move.
https://www.chess.com/game/live/33344038157
I was playing a rapid game and suddenly it said my opponent won in the middle of the game and the reason given was "game abandoned"? I have no idea what that means or what just happened. It was their turn and it just suddenly said I lost even though I was ahead. What does this mean?