UPDATE: We've been able to confirm that @TeamYouTube's #YouTube2020ElectionBlacklist is still blocking our content for some searches, but ONLY in the United States. The implications are alarming...pic.twitter.com/n0ESF6qvZ0
Have you checked when people are seeing or not seeing your content which operating systems they are using and if they have ad blockers in use? I am wondering if those parameters might make any difference in finding your videos?