The redirect URL is not getting updated and my clients are getting the
Parameter redirect_uri does not match registered URI
error. Does the system take a while to update the value?
It should be instantaneous. They must match exactly–protocol, no trailing slash, etc. I would confirm they match exactly. I had a problem where I accidentally added a trailing slash and didn’t have one in the web UI.
The URL, the client gets redirected to:
https://i.imgur.com/T1olXR8.png
The Twitch Settings application:
https://i.imgur.com/IZ5yfj3.png
After logging in with the Twitch Account, the client gets redirected to a URL, I used before…
After deleting the application from the dashboard and authenticating again it finally works
Occurred with me as well, I tried to update the url but when I tested it the URL was the same as the old URL. This probably is a bug or something.
Anyways, thanks 
I’ll ask the team about this. Thanks for the follow up!