Energy Flow Animation on Android phone does not show the energy flow

Hoi HA users,

Energy Flow Animation on Android phone does not show the energy flow.
This is the same for using the home-assistant app, and when using Firefox.
On my Android tablet it works. And using Firefox on any pc (in Linux of course !), it works

I did clear cache (as I do regular for several apps), cleaned firefox history (everything, for all time) etc.

Picture 1 : Phone. No dots showing the flow >:-(
Picture 2 : Tablet. Dots showing the flow >:-) (I’m not allowed yet to add the 2nd picture >:-( )

How to investigate ? How to fix ?

Thanks in advance, from Hans

home_assistant_tablet_energy_flow_20251209.jpg waiting for the rights to be placed too >:-|