I recently upgraded to the 2.7 RC1 and everything went fine. Well I thought it was until I woke up today and checked my site and saw that every comment made by users were queued up for moderation. At first I thought they must have contained a banned word/email addy, etc, but no, they were just ordinary, nothing-harmful comments. I tried a test run and realized that every comment was being queued for moderation for some reason. I've installed the same RC1 on other sites, and haven't had a single problem, only on this one site. I realized that this site has always been giving me problems with upgrading via the automatic link, and I've had to manually upload the files every time.
Does anyone have a clue why this happened, and how to fix it? The site works just fine and everything, it just so happens that the comments are not going through, but are instead queued for moderation.