Free-tier database (ATP) autonomously shuts down

Summary

Free-tier database (ATP) autonomously shuts down on random intervals

Content

Starting about a month ago, the free tier ATP stops at random intervals and must be manually restarted from the cloud console.

Sometimes it is after an hour, sometimes after a week. Sometimes an inactivity warning message can be seen in the cloud console. I suspect it is all related to the 7 day inactivity detection, but in this case I, a data logger is always connected to the database and is inserting rows every few minutes.  Both committed data and application logs show rows inserted only minutes before the autonomous shutdown.