Yes, good pickup. The lack of FQTV/FQTR in the booking will stop it from ever being approved by the droid. The agent you spoke to did not set it up correctly which I've noticed is extremely common for release requests handled by Fiji or South Africa and you'll need to speak to someone to get it fixed.
The requested sectors that you can see in your PNR using MMB are unconfirmed sectors with "GN" status.
Without any confirmed sectors in the PNR, the FQTV/FQTR will not stick in Amadeus and will drop off as soon as the agents save the booking and the droid will not be able to proceed with approval. I suspect this is what has happened here.
To stop the FQTV/FQTR from dropping off, agents need to add a "pseudo" flight sector (e.g. QF9098 which uses QZW/QZY airport codes) with confirmed (HK) status to the booking. It sounds like the Fiji agent did not do this. Note: This sector is invisible in QF MMB, but if it was there you'd be able to see it in MH MMB or Checkmytrip.
Once the droid has approved the request, the pseudo sector needs to be removed when taxes and points are being collected in order for it to be ticketed.