August Wifi Smart Lock Integration - Lock "unavailable"

Hi, I have the August Wifi Smart Lock integrated with Home Assistant via their official integration. Never had any issues with it. A couple nights ago I replaced the batteries in the smart lock and since then (I believe) the lock entity in HA is “unavailable”.

When I look at the integration, it can read the battery level…

I don’t see any problems in the logs.

I’ve tried reloading and deleting and re-adding the integration.

Anything else I should try?

Thanks