Once I updated the App on the phone, the sync of my photos/videos begun to fail.
I checked logs on the MyCloudExUltra device and found nothing. The application stayed at “6000” photos pending synchronization …
I deleted photos from the mobile device and left only 1000 pending. It didn’t work either.
On my Xiaomi phone I checked the “Automatic Start” option for the APP, and it didn’t work either.
I uninstalled and reinstalled multiple times … and neither.
Finally, the solution has been to enable the “Automatic Start” option and then Restart the mobile device.
Hope this helps more users.