Providing an update:
1. SO cleared the repeat medical exam on 8/31/23
2. Even though it was a repeat medical exam, SLEC said that they would be the ones to submit it to the Embassy (which was slightly different from the wording on the 221(g) but we did call the Embassy and confirm that this should be the case)
3. On 8/31 itself, SO re-submitted the following documents through LBC: Passport, NBI Clearance, 2022 Tax Transcript/Tax Returns/W-2/Payslips, and an updated CENOMAR (they did not ask for this in the 221g but we provided it proactively as the Embassy needs all of this information to be "fresh" in order to make a final determination on visa eligibility)
4. On 9/4/23, we were contacted by SLEC because they were ostensibly missing some information on some medication my SO is currently taking. SO asked SLEC why they needed this information as it's not part of the routine medical check and they said they would call him back shortly (they did not). Accordingly, SO went over to SLEC in person to provide the necessary information (which had previously been provided twice) and only then did SLEC say that they would be sending the medical exam results to the Embassy. They also released his immunization records during his follow-up visit
4. I submitted an inquiry (https://ph.usembassy.gov/visas/immigrant-visa-inquiry-form/) just now so the Embassy can confirm that they received all the re-submitted documents (#2 above) and the repeat medical exam results
Please keep us in our prayers - we've been delayed for almost a year now in this process! Hoping this can come to a favorable conclusion quickly.