That means your BG check started almost after your AOR ?Not always MEP means that R10 is passed. And not always having MEP pending means that R10 is pending.
In my case, I called IRCC on Nov 20 (btw I called not specifically to enquiry about status hahaha, but because of a name updated with error in their system), and the agent said that R10 was passed, although MEP was still pending. I got MEP until yesterday (no particular issue, no additional tests, only waiting...).