Originally Posted by
anabolism
In each of these four cases, did you check EF using the same point-of-sale as the agent booking your RTW? In each of the four cases, was there 24 hours or more before and after the flight in question?
Until you asked this question and I looked, I hadn't realized that one could specify point of sale in the EF availability display. So the answer is no; it was at the default, which is U.S. Agent was in Australia. Just checked again, changed it to Australia, and AA 274 LAX-JFK on 20 February 2019 still shows A6.