I just booked economy flights with the intention of upgrading my outbound sectors with Qcredits and the inbound sectors with Avios. I made sure there was award availability (non-flexi) for the complete trip - which resulted in a 9h layover instead of a 3h layover, which I'm fine with if I can fly business.

When I go to 'Spend my Avios' and try to upgrade, first of all I can only select 1 person in the booking (even though we are 2 people). Then when I try to upgrade I get an error that it looks like there are no available upgrades for my booking at the moment.

How is this possible?

Edit: regarding the option to only upgrade 1 person in the booking, I was just chatting with the QR whatsapp and they told me on my booking reference there is only 1 passenger, even though the e-ticket i received (and the price is paid) is for 2 people... Great job QR!