I'm seeing the same thing but it seem that they are just slow. They do eventually show up on the lock screen.i have it on my L928
Only issue I am having is that the notifications for email and sms do not seem to work.
not sure if its hardware or if its software but I will probably revert back to WP8.1 and test to make sure it is not hardware.
The updates didn't fix the sound issue on email unfortunately. SMS is fine, even if the app isn't open.Since I had just updated to Windows 10, I decided to go to the Store and check for app updates. I had a ton - close to 30 - including one for Mail. Now I the get count of unread emails on the live tile. I hope it will resolve the sound issue too.
Bought a used one (white) for my wife to give smart phones a try. Debated on whether to leave it at 8.1 or update to 10. Did the update and updated all the apps and it appears to be running very nicely. I have the 950xl and the speed on loading and resuming is just a tad slower on the 928. I hope she likes it.
i still do not get email sounds or sms sounds when the device is locked (either after pressing the power button or letting it time out the screen).
I have Messaging + Skype and just noticed I still had Skype set as default sound.
Just changed that so will see if that makes a difference or not.