Blank screen after reboot after migration to 0.4.0 beta 7

Hello,

I’ve followed all the instructions and the migration seemed successful, but after reboot I get only a white blank screen and the browser console says:

That’s from the Edge browser. From other browsers it’s even worse, the site is completely unreachable. But ping IP works.

I did hard refresh many times but it did not work.
So after a few hours I did a hard stop of the device (press for 10 secs) and then start again and then magically the UI worked

Sounds like something was being cached somewhere between the browser and the server. The server disappearing and coming back again caused whatever that was to refresh/reconnect/re-something.