I upgraded my phone to Windows 10 mobile and my band quit receiving texts and fb messages. I found something that fixed it.
In Health app I went to Manage My Tiles
Clicked edit icon on messaging, fb messenger, notifications and turned them off
Next- save
Then I swiped to toggle off each tile.
Save again
Force closed app and restarted my band
Go back into Health app.Toggle each tile back on and save
Send yourself a text to test the sync.
I hope this resolves your notification issue.
In Health app I went to Manage My Tiles
Clicked edit icon on messaging, fb messenger, notifications and turned them off
Next- save
Then I swiped to toggle off each tile.
Save again
Force closed app and restarted my band
Go back into Health app.Toggle each tile back on and save
Send yourself a text to test the sync.
I hope this resolves your notification issue.