Upgrade grafana version
Dashboard data is not showing
Need to open the graphics panel one by one to edit
will show normal
Happens every time Grafana is updated because of many dashboards
How to solve it?
Welcome to the 
community @gehsu
When the data was showing correctly, what Grafana version did you have, and what was the version that caused breaking changes?
Please name also the datasource of one of the panels in which the issue happens.
It would be interesting to see the behavior in a recording