I just received an email from Youtube....
Dear dexum,
We have noticed that your account t******c has multiple unresolved Community Guidelines strikes, copyright strikes, and/or worldwide Content ID blocks. Your ability to monetize your videos may be disabled on all your accounts linked to this AdSense account unless you resolve these issues. Note that account monetization may still be disabled if you delete the blocked videos.
If you are disabled for monetization, you might be able to regain monetization after six months provided that all YouTube channels linked to this AdSense account are in good standing.
Please refer to our Copyright Center and Policy and Safety Hub to learn how to manage your content on YouTube. You can also visit Features and Copyright Notices sections of your YouTube account for more information regarding your account status and visit the Help Center for more information on commercial use rights.
Sincerely,
The YouTube Team