YouTube is currently experimenting with server-side ad injection. This means that the ad is being added directly into the video stream.
This breaks sponsorblock since now all timestamps are offset by the ad times.
For now, I set up the server to detect when someone is submitting from a browser with this happening and rejecting the submission to prevent the database from getting filled with incorrect submissions.
Stop using random anti-adblock fixes you find on the internet, these are almost always out of date and interfere with the actual anti-adblock features in uBlock Origin. YouTube is changing their anti-adblock code multiple times per day.
Simply do the following: 1. Use uBlock Origin and no other adblocker. This includes disabling adblocking in "Enhancer for YouTube", and any built in browser blocker 2. Purge caches and update filters 3. Reload the tab