Thanks @charliecruzan for the quick response.
This was one of the things I checked before posting. Here’s what the Provisioning profile looks like for the Ad Hoc Credentials which we’re using to build iOS:
Note the Push Notifications under “Enabled Capabilities”
@fiberjw mentioned that this could be related to issues with the Apple developer API that have been affecting fastlane builds? I don’t see any errors like the above in this issue though.