Your tablet told SkyDemon that there was an internet connection available, so we tried to us it, to download the latest chart. So that's a bit of an anomaly really, and shouldn't happen often. Perhaps there was an internet connection available but it failed as we tried to use it. You can always adjust the internet connectivity to force offline mode, whereupon SkyDemon will happily show you the orange, out-of-date chart without attempting to update it first.