Apparently the reasoning behind this is that I used "misleading titles / thumbnails" - Which makes no sense, as every thumbnail and title I use, relates to what's in the video, no matter how mysterious. Waiting for a reply @TeamYoutube to rectify this so I can get back to work.
The “reasoning” is censorship. Have you tried searching ‘aliens caught on video’? You get all corporate media now. So they hate conspiracy and they hate individual creators.