"ionic run ios" broken in latest CLI release?

I was working away developing in ionic yesterday and testing on my iPhone happily, when I saw a message popping during one of the build runs that there was a new CLI version released and to run “npm -g ionic update”.

Foolishly disregarding my normal habit NOT to change my development environment in the middle of a project, I decided to go ahead and update.

Straight away, I notice that whenever I ran “ionic run ios”, it seems to get to the part about copying resources to the device and then just bombs out back to the command prompt without any error or warning. Tried several times, including full reboot of PC and device and same thing. I have reverted to building and deploying on the device via XCode, so it is not a huge problem, but just wondering if anyone else experienced the same?