In my application that uses the notification channels with the data selectors set to all, I expect sourcereports that have a non-null source, non-null tid, and non-null List tag.getTagEvents. However, occasionally one of three elements is null when I retrieve the data from a sourcereport. I have not been able to assess which of the above is causing the problem. The problem does not occur with the simulator, but just when a FEIG MR101 serial reader is connected via the IscanController.