Timers no longer work on HomePod

Since yesterday, the Homepod does not accept any request related to the timer, even the simplest "Hey Siri, timer". In fact, any query with the word "timer" fails even if it does not start, query, or stop a timer.

Any other request I can think of is treated as usual.

I tried to unplug it and reconnect it after a while, but it made no difference.

Am I missing something obvious?

The version is 12.2