So, Yeah, update time: Around this time last year (which was when I first posted this thread) I was de-partnered due to a Youtube cock-up. This was eventually fixed and Partnership was reinstated and, oddly, the problem fixed itself... until a few moths later when they started appearing again. This time, after being advised on ithis by the YouTube subreddit to go ask my MCN (aka, the people who I get my partnership from) about it, and, it turns out thaty it was them doing it. They stopped doing it after I asked them to stop. and hasn't been a problem since.
EDIT: since this seems to have resolved itself, Mods can lock this thread.