Suggestions as there IS a current meta for that map and it sounds like you've done everything correctly:-
1. Did you actually run #9 Update F/A
2. Try copying F/A into this new map folder & run it from there
3. inside the map folder do you see a Western_US_and_Canada.pna file, a Western_US_and_Canada.meta file and Western_US_and_Canada.dct file?
3. The map download may indeed be incomplete/corrupted so you might have to try an alternative link