Hi, I have a big problem with sync between lightrom mobile on iPad (my full set of RAW files) and Lightroom on computer as well as LR Web. There is a set of pictures (raw format) I downloaded directly from my memory card ti iPad Pro and it is the only copy I have. They are not visible in neither Web LR nor synced with LR Classic. On iPad there are smart previews, but the raw originals are downloading within seconds, so it looks there are somwhere in the cloud. I have no access to them however, other than on iPad. It is about 3000 files 25Mb each (sony .arw files).
Both Web and Classic LR shows about 16000 files synced, while iPad shows almost 18000.
Ensure that your Lightroom for mobile app is up to date. To keep your Lightroom for mobile (iOS) app up to date, see Apple's documentation Turn on Automatic Downloads. To keep your Lightroom for mobile (Android) app up to date, see Google's documentation Update downloaded apps.
Ensure that your are running Lightroom on your desktop and Lightroom for mobile app on the same Internet WiFi network. Syncing is paused over the cellular network, if you've enabled Sync Only Over WiFi in Lightroom app's settings. To know more about app settings and preferences, see Lightroom for mobile (iOS)|Sidebar and Lightroom for mobile (Android)|Sidebar.
Ensure that Lightroom for mobile is running in the foreground, especially when the syncing is in progress. To achieve this, make sure that your mobile device does not go into the sleep mode.
Check that sync is enabled on Lightroom on iPad and check that storage space on Cloud is not occupied.