Just confirming that this issue is resolved for me. We did have to
delete the old containers of the failed downloads and then restart.
After these steps, Apps pushed quickly and seamlessly. Also, kudos to
Apple Enterprise support for assigning a skil...
Just called Apple and referenced the ticket # 1163854473. They
acknowledged the issue and said it's "likely a server-side issue." Got
direct contact info and they'll follow up directly in 48 hours for
Apple-focused systems administrator. Previously with the Apple Store, then an MSP and now full-time at a non-profit.