If a user configures a query within ArcGIS Explorer Online against a map service hosted on ArcGIS Server, attempts to submit the query from the ArcGIS for iOS app, and is logged into their ArcGIS Online Organization, the query will fail with the following error message: "Unable to perform query. Check the syntax and try again. Invalid token." The same query will not fail if the web map is shared with the public and the user is not logged into an organization account.