I'll explain what I experienced and how I "solved" it. iPhone was not detectable in any way (nor was the apple watch), I tried getting latest beta of Xcode, I tried latest stable release, nothing seemed to work. I waited for final release which came up shortly and still no luck. What ended up working was a thunderbolt cable. I went to an Apple Store and they told me to wipe the phone completely because I still had the beta installed, which attending to build number was wrong, but something was off so I wiped the phone. That fixed the issue, although I lost a couple of pictures and some minor data for apps that didn't save it in cloud. Hope this helps someone in the future :) As a side note, debugging on an Apple Watch is becoming really really difficult... sometimes it just does not want to connect

+1