Some DA_WM_A51_20_COMMON Samsung Washer sensors report constant 0

[convicte]

Since transitioning to the custom integration, my Samsung washer stopped displaying some readings, while others seem to have confusing units:

1. The default integration used to show washer Power, but the custom sensor is a flat zero throughout.
2. The PowerEnergy used to be a valid sensor in W, but now reports a flat zero in kWh, which sounds like it would be a duplication of deltaEnergy. But, actually it's not showing any data, so it's just a waste of an entity.
3. The total Energy sensor provides very course information about the used kWh, but this may be just the nature of the information coming from the device. This said, if the Power sensor used to be able to report real time Power, I wonder why the Energy is creating a step pattern.

Maybe I am misunderstanding something?

Thank you in advance for any assistance!