I can also confirm this as a solution.I first took a complete back up of my mac in case this leads to further unforeseen issues.I then ensured X-code was closed.Next, I deleted all certificates in the keychain and my IOS developer key.Finally, I rebooted x-code and ran a vanilla app to see if it would access debugging and it is running fine.**** knows what other certificates I have deleted. Hence the back up first. If you do want to replace the Apple Worldwide Developer Relations Certification Authority certificate it can be downloaded directly from Apple. Just google it.
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: