For what it’s worth, I’m facing a similar issue again. I shared the stack trace here.
I start the replica, configure everything, and finally start working. I create a few proposals, then stop the replica, go on with my life, and come back to it later, only to find the replica is corrupted or unhealthy.
I assumed this happened because I created too many proposals, like 5 or 10. However, I had a call with a friend and wanted to quickly showcase to him where we stand with the preparation of my SNS proposal, but I was unable to do so because the replica I restarted during the call failed.