Xcode as of 6.3 is no longer allowing me to automatically perform device provisioning for a client. Has anyone else experienced this issue? I found no results when searching for this on Google...
This client has their own bundle ID and it's possible they also have their own provisioning profile for this device. So maybe Apple is matching up the bundle ID irrespective of the developer account being used for provisioning.
I was able to address the issue by modifying the app's bundle ID and manually going through the provisioning process, but I'm guessing this issue is extremely rare, so I'm not sure if this post will be of use to anyone.
I just found that if I remove my account from Xcode, and then sign in again, it solved the issue. I did revoke my existing certificates and request new ones though as part of that process. I didn't import an existing profile.