After updating grafana from v6.7.1 to v7.0.5

Guys,

We have updated grafana running on AWS EC2 from v6.7.1 to v7.0.5.
After updating, the dashboard was displayed without any problems, but once I signed out and then signed back in, the dashboard disappeared.
Do I need additional settings in the grafana.ini file?

Thank you

Hey, Guys

It was a problem with the cookie path.
I solved it by changing login_cookie_name in grafana.ini.
Thank you very much.

[https://grafana.com/docs/grafana/latest/installation/upgrading/#cookie-path]