This wasn't reproduced by Adguard - https://github.com/AdguardTeam/AdguardFilters/issues/30719. Please check these URLs with a clean profile/container.
Membership annoyance:
https://www.youtube.com/watch?v=BGN8bP5uJvM

https://www.youtube.com/channel/UCkJEpR7JmS36tajD34Gp4VA/videos

Adguard Base + Annoyances + Portuguese + Russian + Social + Spyware
uBlock Origin 1.18.6
Firefox 66
I'm able to reproduce the annoyance.
test
youtube.com##.ytd-popup-container
@ryanbr
FYI @mapx- @ryanbr youtube.com##.ytd-popup-container will block valid popups such as hamburger popup, the filter is too broad from my experience.
See: https://github.com/yourduskquibbles/webannoyances/issues/60
right, probably something like
https://github.com/AdguardTeam/AdguardFilters/issues/30719#issuecomment-471222204
would work
youtube.com##.ytd-popup-container:has-text(/membership/i)
youtube.com##.ytd-popup-container:has-text(/membership/i)
This works for me on second link
This cosmetic filter was breaking the notifications and account dropdowns for me as of earler today.
! https://github.com/uBlockOrigin/uAssets/issues/5191
youtube.com##.ytd-popup-container:has-text(/membership /i)
I disabled it in my filters, just an FYI in case others are seeing the same.
removed