Due to an implementation bug, v3 onion services were experiencing instability earlier today.

A bug fix is on the way.

Everything else in Tor works fine even when the consensus is a few hours old, and v3 onion services should too.

You can learn more here: https://gitlab.torproject.org/tpo/core/tor/-/issues/40237

And here: https://lists.torproject.org/pipermail/network-health/2021-January/000659.html