Just spitballing here, but if it happens again check the time on the 740 for accuracy. I've owned a 700, 720, & 740 and I remember they can get unpredictable if the time is incorrect. For a while I & others noticed the 740 would boot up thinking it was around 2:30am until it got a GPS lock, and even then it might not correct itself to the proper time. Perhaps (this is the spitballing part) the iFly clock was around 7am and still had weather data from that timeframe in the weather folder, so it displayed it (maybe the 740 was powered up around 7am for flight planning?). The more current weather and images from 4pm were maybe deemed invalid by iFly (they were from the FUTURE!) and therefore not shown.