Battle timer didn’t end the match.

Tapu10Koko

Upon the expiration of my opponent's battle timer, the battle failed to terminate. Consequently, I was forced to concede the match to bring it to a conclusion, as my adversary was inactive throughout the entirety of the game. I am curious to know whether this is a deliberate feature or a flaw in the system.

TechHog

It's a bug that happens if you DC. If your opponent goes more than 45 seconds without any actions, you've already lost.