Also getting a bug with this as well. For example, Counterspell from the Jace vs Chandra duel decks is pulling the price from the 7th Edition set in my inventory list. Avg 1.27 respectively instead of the correct tcg average 6.94.

The cards below are saying $0.00 in my inventory list.

Savannah
    Land - Forest Plains     Revised Edition (Rare)     $0.00 
    2     2     0    
Scrubland
    Land - Plains Swamp     Revised Edition (Rare)     $0.00 
    3     3     0    
Survival of the Fittest
    Enchantment     Exodus (Rare)     $0.00 
    4     0     0    
Tropical Island
    Land - Forest Island     Revised Edition (Rare)     $0.00 
    4     0     0    
Underground Sea
    Land - Island Swamp     Revised Edition (Rare)     $0.00
5     1     0    
Wasteland
    Land     Tempest (Uncommon)     $0.00