RESOLVED [~12:00pm CT]:
Our vendor has resolved our server issues and iOS builds should be working normally as of about 10:00am Central Time (USA); we waited to post a resolution until we saw improvements across the board.
Thank you for your patience and please contact us if you have any more issues.
PROBLEM IDENTIFIED [9:55am CT]:
Our team has isolated the iOS build issue to a third-party server and attempted to mitigate the problem. We expect to see builds recovering and working again soon.
INITIAL REPORT [7:15am CT]:
We've received reports that customers are run iOS Package builds in Appflow. Our team is investigating.