I only do lightroom through my phone, I had an issue with the app and got in touched with a chat support and suggested to uninstall/install the app. Now when I'm trying to get my photos back to the app, I can't helped to noticed the difference in quality of the photos after I reinstalled the app compare to how it used to. I then look for how much storage the app is taking up and it's only about 15-20 percent of how much storage it used to consume. It downloaded smart previews of the photos even I disabled smart previews. The only way I can have my original photos is to go through every photos and wait for the app to download the original, though next time it just load the photos, but still, that's quite a handful. If I have at least 100 photos, that would already take some time. I wish lightroom has a feature that downloads original copies of photos from cloud storage to the lightroom mobile app.