On several occasions I have down loaded the charts in the AIP. When planning the trip they are in the memory. After shutting down the iPad and restarting for the trip the AIP charts have disappeared. Have I some incorrect settings?

I've changed mine to live data when planning instead of the planning and flying option. I hope this makes a difference but the last time it did this I was on the ground not in flying mode it was just I had no Internet coverage so not sure this is going to change it in them circs but it might in mid flight.

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