A good way to avoid connectivity issues is that you "Enable Offline Editing" as part of the collections settings first. With that you have all the data on your device.
Thank you. I was under the false impression that the preview were already on the device. Just in time info as we have neither WiFi or electricity at moment.
Sent from Ed's iPad
Not trying to hijack this thread, but are you saying that if you DO NOT check "Enable Offline Editing" that the preview is not on the iPhone (and correspondingly will not use storage space)?
This would mean that the "offline editing" switch could be used to save space on you iPhone but have it turned ON on you iPad?
Correct. When Offline Editing is turned off Lr Mobile will download e.g a larger preview only on request, e.g when you would like to edit a photo in develop, preset or crop mode. - Guido