Just tried the beta portal on Firefox and the power flow display wasn't working correctly for about 30 or 40 seconds - just had a long line from the grid to the house and a red blob at the end. But as I wrote this started displaying correctly.
Also in both Edge and Firefox (Not tried any other browsers) that the Solar array and battery are displaying nothing - just greyed out. But if I look on the inverter card, the information is there. The dot by my account name though is yellow which I think means standby.