Clock stops at 1 minute instead of timing out

I’ve noticed Daily games where the time clock comes to a standstill at 1 minute remaining. It just stops at the 1 minute mark instead of timing out. The player is not on vacation time. Other games for the same player will time out like normal, but the standstill game remains stuck at 1 minute remaining. It’s eternal life for chess games. Why is this happening?
If you don't have the auto-claim on timeout feature turned on the games will sit like that until your opponent moves, you manually claim, or 60 days have passed since the last move.
https://support.chess.com/en/articles/8705363-how-can-i-prevent-getting-wins-based-on-timeouts

Weird, the account where I last noticed this won by a timeout a few months ago. Odd setting to manually turn off. That would drive me crazy to have a game sitting there like that. He only has a few games so he has to have seen it, so it must be what he’s going for. Thanks for the explanation.

Weird, the account where I last noticed this won by a timeout a few months ago. Odd setting to manually turn off. That would drive me crazy to have a game sitting there like that. He only has a few games so he has to have seen it, so it must be what he’s going for. Thanks for the explanation.
Pretty sure it's off by default
I’ve noticed Daily games where the time clock comes to a standstill at 1 minute remaining. It just stops at the 1 minute mark instead of timing out. The player is not on vacation time. Other games for the same player will time out like normal, but the standstill game remains stuck at 1 minute remaining. It’s eternal life for chess games. Why is this happening?