I’m possibly being a bit dumb and missing something obvious here, but I’m having a syncing problem here. When I add a file to the dropbox app on my iphone, I can see that the file namd appears in the dropbox app on my mac, but it doesn’t fully sync. Instead a small icon of a cloud appears, which I have to click on in order for the file to sync. Previously, I never had to do that and files would just automatically sync. Is there something I can do to activate auto-sync and to stop having to click the little cloud icon to make it happen for every file?