It's not a problem at all.
IMO that's only a floppy workaround and not convenient at all. I still think it's a bug. When I open app settings I see that the "image cache" is getting filled with some MBs, but the "Album" is not showing them under "DJI Fly".Just go into the Fly app's "gallery" and look at the images...it is separated into what the drone has on it and what you d/loaded into the app. You can look at that low res version "on the fly" to see if it is good...that doesn't have to be downloaded so it is quick to review