Don't seem to be getting content-id match email notifications any more, but still get other email notifications

I've noticed lately that I don't seem to be getting content-id match email notifications any more, even though I still get email notifications for everything else, such as comments, messages and subscribes. I haven't been able to find any setting that affects just copyright match email notifications. Is it just me, or is this some deficiency in YouTube?

I have to keep checking Video Manager every day to see if there are any matches, so that I can dispute them, because I don't seem to get email notifications about matches any more.

Side note: I seem to be getting a lot of matches from "CD Baby" these days. I have licenses for all the music I use, so I have to keep disputing. There seems to be a sudden increase in artists that have licensed their music elsewhere but they have also started putting it into CD Baby as well, which results in a lot of disputes I have to keep doing with CD Baby for music I legitimately licensed from some other place (which is annoying, but that's life). These matches always seem to come on nights and weekends, never during normal hours, and I never get any email notification. It almost feels like some sort of conspiracy to keep the matches around for as long as possible before I can dispute them, although I assume it isn't really a conspiracy, it just feels that way...