you need to update your device to the latest insider build i.e 14951.1000 which should fix the bug. further after installing the patch perform a hard reset for better experience.
As you opted to be an insider , you have agreed to test incomplete bugged OS which could land you in such situations where no possible solutions has been provided by Microsoft or has not even been acknowledged by them that such a bug exist , it could be isolated to you. So for now update you device to the new build and observe if the " harassing/" issue persist. If it does then first up-vote it on the feedback app and then rollback to the official build to experience greater stability .
do tell us the complete notification with any error code that the insider app gives you for better understanding of the issue.
10-28-2016 10:07 PM