Grafana dashboards are missing after sometime in 9.1.4

Using Grafana 9.1.4.
All are dashboards(~110 dashboards) are deployed to the Grafana 9.1.4 version and they are available.

After sometime some are the dashboards are missing. Can someone assist on why they are getting disappeared?

Hi Grafana Team,
I have the same issue with Grafana 9.4.3 OSS.
I have a APP based on Grafana docker image hosting on AWS.
Also use dashboard.josn files for provisioning all the dashboards.

After I migrate Grafana from v7.5.17 to 9.4.3 , I have this all dashboards not found issue…
To be more detailed, this issue occur sometimes after I redeploy Grafana on AWS,
all the dashboards will missing right after the install or after several hours or days.

Any update?