iCloud Error (invalid username/password....) out of nowhere. Anyone else?

Seems out of nowhere im getting the error

Error logging into iCloud Service: (‘Invalid email/password combination.’, PyiCloudAPIResponseException(‘Unknown reason’))

I know my credentials haven’t changed, and I’ve triple checked them anyways in secrets.yaml – its all correct.

I found some old posts from last year in June '19 about this, and it had something to do with Apple changing something on their end.

Anyone else experiencing this now?

Any solutions?