"Error Provision not found" even though the provision is present and valid in 4.13.1

[anonymous_user_bcdd396d]

As we investigate, be advised that: Code signing configurations have changed when using XCode 8 (See: Migrating Code Signing Configurations to XCode 8

While there may be a bug here, if using XCode 8, following the steps in the above link has resolved issues for other users.