Same here...nothing has changed in my setup at all except the auto-update to 4.6.9.3. One device checked in Mobile Devices, a test from the Alert tab shows 'Alert sent to 0 devices', and the following is littering my logs:
0 2/14/2018 12:00:56 AM App Version 4.6.9.3 is now available.
0 2/14/2018 12:01:09 AM App Stopped
0 2/14/2018 12:01:12 AM App Started
0 2/14/2018 12:01:14 AM Server Started on port 8181
0 2/14/2018 12:01:14 AM App Today's sunrise: 7:25 AM, sunset: 6:14 PM
3 2/14/2018 4:58:12 AM Cam5 MOTION
2 2/14/2018 4:58:12 AM Cam5 iOS push failure -2146885630
10 2/14/2018 4:59:13 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 5:02:55 AM Cam5 MOTION
2 2/14/2018 5:02:55 AM Cam5 iOS push failure -2146885630
10 2/14/2018 5:03:58 AM User01 0.0.0.0: Logout, 1:03
3 2/14/2018 6:46:11 AM Cam3 MOTION
2 2/14/2018 6:46:11 AM Cam3 iOS push failure -2146885630
3 2/14/2018 6:46:13 AM Cam1 MOTION
2 2/14/2018 6:46:13 AM Cam1 iOS push failure -2146885630
10 2/14/2018 6:47:11 AM User01 0.0.0.0: Logout, 1:00
10 2/14/2018 6:47:14 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 6:47:23 AM Cam3 MOTION
2 2/14/2018 6:47:24 AM Cam3 iOS push failure -2146885630
10 2/14/2018 6:48:26 AM User01 0.0.0.0: Logout, 1:02
3 2/14/2018 7:19:09 AM Cam1 MOTION
2 2/14/2018 7:19:09 AM Cam1 iOS push failure -2146885630
10 2/14/2018 7:20:10 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 7:28:49 AM Cam3 MOTION
2 2/14/2018 7:28:49 AM Cam3 iOS push failure -2146885630
10 2/14/2018 7:29:50 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 8:58:00 AM Cam7 MOTION
2 2/14/2018 8:58:01 AM Cam7 iOS push failure -2146885630
3 2/14/2018 8:59:01 AM Cam7 MOTION
2 2/14/2018 8:59:01 AM Cam7 iOS push failure -2146885630
10 2/14/2018 8:59:02 AM User01 0.0.0.0: Logout, 1:00
10 2/14/2018 9:00:02 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 9:00:31 AM Cam7 MOTION
2 2/14/2018 9:00:31 AM Cam7 iOS push failure -2146885630
3 2/14/2018 9:00:43 AM Cam3 MOTION
2 2/14/2018 9:00:43 AM Cam3 iOS push failure -2146885630
3 2/14/2018 9:00:46 AM Cam1 MOTION
2 2/14/2018 9:00:46 AM Cam1 iOS push failure -2146885630
10 2/14/2018 9:01:32 AM User01 0.0.0.0: Logout, 1:01
10 2/14/2018 9:01:44 AM User01 0.0.0.0: Logout, 1:01
10 2/14/2018 9:01:47 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 9:05:37 AM Cam7 MOTION
2 2/14/2018 9:05:37 AM Cam7 iOS push failure -2146885630
10 2/14/2018 9:06:38 AM User01 0.0.0.0: Logout, 1:01
3 2/14/2018 2:34:42 PM Cam7 MOTION
2 2/14/2018 2:34:43 PM Cam7 iOS push failure -2146885630
3 2/14/2018 2:35:01 PM Cam3 MOTION
2 2/14/2018 2:35:02 PM Cam3 iOS push failure -2146885630
3 2/14/2018 2:35:33 PM Cam7 MOTION
2 2/14/2018 2:35:34 PM Cam7 iOS push failure -2146885630
10 2/14/2018 2:35:44 PM User01 0.0.0.0: Logout, 1:01
10 2/14/2018 2:36:34 PM User01 0.0.0.0: Logout, 1:32
3 2/14/2018 2:40:49 PM Cam7 MOTION
2 2/14/2018 2:40:50 PM Cam7 iOS push failure -2146885630
10 2/14/2018 2:41:52 PM User01 0.0.0.0: Logout, 1:02
3 2/14/2018 3:07:09 PM Cam3 MOTION
2 2/14/2018 3:07:09 PM Cam3 iOS push failure -2146885630
3 2/14/2018 3:07:10 PM Cam1 MOTION
2 2/14/2018 3:07:10 PM Cam1 iOS push failure -2146885630
3 2/14/2018 3:07:59 PM Cam1 MOTION
2 2/14/2018 3:08:00 PM Cam1 iOS push failure -2146885630
10 2/14/2018 3:08:11 PM User01 0.0.0.0: Logout, 1:01
10 2/14/2018 3:08:11 PM User01 0.0.0.0: Logout, 1:02
3 2/14/2018 3:10:12 PM Cam1 MOTION
2 2/14/2018 3:10:13 PM Cam1 iOS push failure -2146885630
3 2/14/2018 3:10:56 PM Cam3 MOTION
2 2/14/2018 3:10:56 PM Cam3 iOS push failure -2146885630