Adding another data point here reinforcing that it seems something remains seriously broken with Alaska redeeming on Fiji.

I've booked many trips with AS miles on FJ from Australia to the US via Fiji in the past and while availability has always been fairly limited, I'd never had problems getting the itinerary to ticket when availability did show up on AS' website.

Last week, naively believing I'd have no problem, I bought a few thousand miles to book a SYD-NAN-LAX ticket only to get the dreaded error at the last step. I couldn't get a single available combination to ticket, and there appeared to be availability on the same flights through American and Qantas. I finally called in a few times and despite two agents seeming to make a genuine effort, they confirmed nothing was actually showing available on their end to LAX, SFO, or YVR. I asked about SABRE and long selling and the one agent who knew what I was talking about said she couldn't do it. I finally gave up and fortunately they refunded the miles purchase I'd just made, but a real pity in the end.

Devaluation doesn't mean anything where there's zero value to be derived from the "better" rates.