I completed ‘M201: MongoDB Performance’ last Fri (Nov 11, 2022). I also did not receive a course completion certificate.
One complication in my case is that I did take this course before.
If I go under the ‘Proof of Completion’ tab, I see the course listed there, but the date on the certificate is 2020-12-25.
(Interestingly, this date does not match the date on my previous course completion certificate of 2021-01-01, but that’s a separate issue).
Back in June, I also retook another course, M121. In that case, I did get a new certificate for my June completion. So, I was expecting a new certificate this time as well for M201.