Since futures contracts trade on different exchanges, please check that you have enabled, or requested your broker to enable data for any exchange you wish to view or trade. 

Please also be sure to check that you are using the correct symbol, and trading the proper month for the product you are trying to view. Base symbols can vary by data feed.

If you are unable to access data for a certain market, or need to know what the base symbol is for a product you want to view or trade, please contact your broker.