Google Home app redirects back to 'Set Up' screen after attempting to oauth test action

I’ve been trying to setup the google home assistant component with my home assistant. Every time when I go to add the test action from my Google Home app it sends me to my home assistant login screen, I login, it sends me back to the Google home app where it says “Linking your [test] Hass account”, and then it just sends me back to the ‘Set Up’ screen with no success or error message.

I have no idea what’s going on, because there’s no errors, but it’s definitely not getting added. Any ideas? Or is there anywhere I can see logs for this OAuth process?