As noted in this thread, I've been having problems trying to book an Aeroplan award ticket Africa-Europe return.

When I try to check availability with Awards/AC-StarAlliance (using KVS v6.9.9.R3 on Win7), I get the following error:
Datasource Error [RD]: "(Engine Error/Unsupported Route)"

This seems to occur for any route between Africa and Europe (eg: JNB-LHR, FRA-ADD, etc). However, it doesn't occur for TATL routes (eg: LHR-YYZ, or even JNB-YYZ (which routes via LHR)).

Is this a problem with KVSTool, or with the Air Canada/Aeroplan booking engine? (The latter seems plausible, as I get errors when I try similar Africa-Europe routes on their website - so I was trying to use KVS to check if it was an availability problem, or a technical problem).

On a related note, can I check award availability on ET using Sabre:Availability/FS? This shows X-class availability for ET flights (although not for any LH flights, as far as I can tell), although it isn't listed as a method for checking award availability on ET on the KVS FAQ. Or does availability in X mean something else in this context?