Web Compatibility Support • Unable to unsubscribe from YouTube channels.

I'm logged into YouTube and attempting to unsubscribe from a channel I am currently subscribed to. It does not work.

I can change the notification style using the Subscription control, but the final option of unsubscribing does not work. I know I'm a bit of a masochist still using PM for this site, but it still works quite well for me in general.

Steps to reproduce:

1. Obtain a YouTube account if not already done so and something you're willing to do. https://www.youtube.com
2. Log into your YouTube account.
3. Subscribe to a channel (any channel).
4. Attempt to unsubscribe from that channel.
5. Notice it does not work.