I have the app installed to an iPhone and two Android phones. One of the Android phones sometimes gets a brief notification from the notification shade with no sound and the other two get nothing at all. All the devices are showing the task with the due date/time and I just can't get the phones to give a notification from the app itself. I have it going to an email address too so there is something in the setting, but I just want the app on the phones to alert me only