I had 25 seconds. My opponent had 5. I moved. But my clock kept going down. I could even pre move my next moves. I had internet. It wasn’t flashing red. It was a glitch.
What you're describing is a disconnect, even though the connection indicator didn't show red.
https://support.chess.com/en/articles/8652402-how-can-i-optimize-my-online-chess-performance
https://support.chess.com/en/articles/8584209-how-do-i-fix-my-disconnect-lag-issues
I had 25 seconds. My opponent had 5. I moved. But my clock kept going down. I could even pre move my next moves. I had internet. It wasn’t flashing red. It was a glitch.