Futures Charts different than Forex and CFD's? Why?

Hi there,

My background is mostly forex and CFD's. Upon switching to futures, I noticed that the candle close price and open price of the next candle are often a different price. Even for time bars! With Forex and CFD's, it's always the opposite - the close price of one candle is the exact same as the open price of the next candle. This makes sense to me. Why is this the case for futures? And does a third party charting application for IB exist, that will correct this? Or a data feed?

I would post screenshots but I'm a new member.

Thanks in advance.