I am using Manual Provisioning for an iOS/WatchOS application (because Automatic simply will not work; it cannot even find my Team which is working fine in XCode on the Mac).
The Manual Provisioning did work fine one afternoon. Then, when I re-opened the solution the next day, without touching a line of code, it stopped working. Actually, that is not entirely true. My build still works okay, and I can run the iOS part of the application, but I cannot deploy to the Watch. The Watch does not even appear in the list of target devices when running.
I don't know what is wrong, but one thing I find odd is that the iOS Bundle Signing tab in Visual Studio keeps going back to Automatic Provisioning. Actually, this is not quite true either: the radio button at the top of the screen stays on Manual but the Manual Provisioning drop-downs below go back to Developer (Automatic), Automatic, with no Custom Entitlements selected.
If anyone is on here from Xamarin, please offer some input on this. I haven't written a line of code in over a week because of this. I am seriously having to consider dropping the entire Xamarin platform. I am now at the point where the only thing I can think of to try is a complete reinstall of my entire development environment. After that, I am looking at a complete reinstall of Windows itself, to wipe all settings (though I might have hung myself before then).