Based on your steps of reproduction, I was not able to reproduce it on my test machine.
Here are my steps:
1- Wifi on
2- Setup docker with Grafana v.10.0 on local env (no virtual machine etc)
3- Can access grafana via localhost and as for test setup TestDB Data source and able to create a Random walk panel and change the time picker (no issues)
4- Bring down the Docker Grafana container
5- Disable Wifi
6- Docker Grafana container again up
7- Able to login and access the panel
8- Found no issues with the time picker flickering
I used Chrome’s latest version 114 and Firefox version 102
My suspicion is that this is related to the fact that it doesn’t have internet access. The server is isolated from internet. This is my main difference from other installations I have. All my other servers have internet access and behave normal.
Thank you for narrowing it down and able to identify that the issue is within the Edge browser
We would appreciate it if you can open a bug report about this in our official GitHub repository using this link.
Provide all the information (you can simply copy/paste your data + screenshot from here to there).
Lastly, paste the link to your GitHub issue here in this post so that all other community users can also track it. I will also add more additional information to it