Solar charger showing as hardwired

I've got a Ring Video doorbell (2nd gen) and a solar charger The solar charger has never worked, but when I checked the device health last week it showed a solar charger tab, which it never had before. I have a Ring security camera with a solar charger which works perfectly, and it has always displayed the solar charger as being connected keeping the battery at 100%. Anyway, I charged the battery in the doorbell and reconnected it, and it now shows the power source as 'Hardwired'. It is not hardwired but only connected to the solar charger - totally confused?!