installed for bulk unsubscribe but doesn't work

edit1: it seems youtube only allows to unsub to 10 channels at a time. But the UI allows to select more than 10. The UI should prevent to select more than 10 or loop over unsubscribe calls 10 at a time

There's a tiny bug on the Subscriptions page where the state of selected labels are NOT remembered if it starts with a "+". I named some labels with a preceding + symbol but I think something goes wrong with certain characters. I still think the extension is amazing. I'm just too lazy to rename my labels, lol.

Most of the useful features are behind a paywall.

Why isn't this feature already implemented by default in YouTube? It's 2023 !

I paid for the subscription just to shot videos on popularity to save me time, however in many instances it won't sort video on views, when I set it to popularity. The arrangement even with 100 or 200 videos filter it will show me old videos with high view but hide some. I have to go to channel page and individually check for videos which defeat the whole purpose of paying for subscription.


Update:
I appreciate your timely response and clarifying the details of the cause. It's alright I will just cancel my following subscription. but I would like to request a notification if in future you figure out a way to solve this issue I will gladly take the membership again. :)