Allowing ads on specific YouTube channels rarely works as expected - in fact, it very often has the opposite effect. Ads frequently play on channels that haven't enabled them, while failing to appear on channels you want to support with ads.
This is the first report I've received on this issue. Please open a ticket so we can review your settings and help troubleshoot. You can find our Help Center and open a ticket by going to our website and clicking "Support" — Kat C., AdBlock Support
