My AOR is Oct 2018. I had the same issue. There was a review required for reference letters. The analyst mentioned mismatch between noc code and duties. I sent revised letters in May 2019 and then got a request for revised POF in January 2020. I had no update from them in the interim period and no progress till September 2019 as per the GCMS notes that I had received.
From my experience, it would best to call and check about your eligibility with IRCC. In the meantime, order GCMS notes once again (it seems they are being issued faster than before). The webform queries or emails to VOs are not helpful as they are very ambiguous in their responses.
From the forums, it seems they IRCC is processing files but not issuing PPRs.