This just started to happen on my phone (after updating to iOS 10.3).
I will open the WHD.app and pull up a ticket on my iPhone 7. Add a note, and save.
I will then go to my computer, and there is no Note on my ticket, yet the ticket was changed from Open to Assigned, so I know something was done to the ticket.
Could this be a bad sign for the WHD.app?
Hoping for an update soon…