We are using the iCloud ubiquity container along with a derivative of UIDocument to store a users backup files in iCloud. Recently it occurred to us, that if we delete the files we have stored via the iOS devices settings unter Settings > Apple-ID > iCloud > Manage Storage, we are not able to use the ubiquity container anymore.
We still get a URL for the container via NSFileManager.GetUrlForUbiquityContainer(null) (we are using Xamarin, hence C#, FWIF, but I don't think it matters that much), but neither will saving the UIDocument save anything to iCloud (at least not as far as I can tell, Manage storage won't show our app, let alone any files), nor will getting saved files with a NSMetadataQuery with SearchScopes = new NSObject[] { NSMetadataQuery.UbiquitousDocumentsScope } } return anything.
I've tried disabling and enabling iCloud for our app, reinstalling (from visual studio and from TestFlight) and explicitly creating the ubiquity container folder from out app, but to no avail.
Is there anything I can to to re-enable the ubiquity container after it's been deleted?