My I-601 waiver was approved by USCIS April 26, 2022 for my immigrant visa case. I noticed that my CEAC date of last update has not been updated, suggesting they did not get the waiver approval notice. I was waiting for instructions from the embassy after the approval but did not hear from them. So I emailed the Montreal consulate and after two weeks they responded that they did not yet receive the approved waiver and will not proceed without it. What am I supposed to do ? I scanned and emailed the approval notice to them (I-797 from USCIS) in reply to their email. Normally the consulate is supposed to be notified directly by USCIS upon approval. Has this happened to anybody? How do I get this resolved ? Please help!