Energy cards added to custom dashboards are broken

I created a custom dashboard and added some of the cards from Energy Cards - Home Assistant (home-assistant.io). This has worked fine for months. Suddenly all of the data has disappeared from the built-in energy cards in my custom dashboard, but display perfectly in the built-in Energy dashboard. As per screenshot of my custom dashboard, none of the energy cards are displaying data (only my custom elements)

Screenshot below is of the built-in Energy dashboard.
Has anyone experienced this or know how to troubleshoot? I created a new dashboard and added the energy cards again, but same issue (no data).
I can repro this on PC (Chrome and Edge) and the Android mobile client.

SOLVED: Turns out I had 2 energy utility meters sharing the same unique id (copy/paste error). Oddly, this did not affect the built in Energy dashboard, but caused the energy cards in custom dashboards to show no data.

Interesting, I am running through the same issue.
With my energy dashboard, I am plotting data from offpeak energy import and peak energy import so from 2 energy utility meters. It works fine with the energy dashboard but no data can populate in the custom energy dashboard (but it works within the energy sources table…)
So what have done to actually solve your display issue in the custom energy dashboard?