Hello!
Unfortunately, Spotify is not accepted the endpoint as recommended in the OneTagger help. If I fill in the endpoint field with "http://127.0.0.1:36914/spotify", after attempting to log in, I receive a message on Spotify saying "INVALID_CLIENT: Invalid redirect URL". This issue occurs on the Mac app, but I'm not sure if it's due to changes on Spotify's side. If you have already solved this problem, I would be glad to know how to fix it.
You might want to try using latest Actions build since it has fixes related to this.
The current redirect URL is: http://127.0.0.1:36913/spotify. Check your Spotify developer console if it's there. If not, then add it. If it still doesn't work, you could try adding URL which has localhost instead of 127.0.0.1
Hello! Unfortunately, Spotify is not accepted the endpoint as recommended in the OneTagger help. If I fill in the endpoint field with "http://127.0.0.1:36914/spotify", after attempting to log in, I receive a message on Spotify saying "INVALID_CLIENT: Invalid redirect URL". This issue occurs on the Mac app, but I'm not sure if it's due to changes on Spotify's side. If you have already solved this problem, I would be glad to know how to fix it.