Hello everyone.
I have recently had the same issue, so I posted on github about it.
Looks like some solution would be to edit grafana.ini regarding sqlite3 write ahead configuration.
Here’s the link to the issue on github:
Alerting: Contact points, custom templates, notification policies disappeared after alert rule editing · Issue #64798 · grafana/grafana (github.com)
Hope it helps!
(of course, don’t forget to keep regular backups)
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