For any poor soul that ends up here, the problem is as follows.
If you have default_config:
present in your configuration.yaml, it will automatically enable the my
plugin which forces the redirect url to use my.home-assistant.io
To disable this you need to either:
- Remove
default_config:
(but this means you have to manually set up EVERY other feature it includes) - [RECOMMENDED] Add
default_config_disabler
(here) via HACS and use it to disable themy
plugin.