What is the flight #/date/class in question?
For example:
On 22Apr
US1803 RSW-CLT shows FS5 and the connecting flight
US1788 CLT-ORD also shows FS5
BA says no F award availability. Is this a case of one flight having availability and the other not?
And when I click on the Availability tab, these flights don't even show as being available for revenue.