What is the point of having a dedicated registry if it does not work properly most of the time?

$ docker pull containers.intersystems.com/intersystems/iris-community:latest-em
latest-em: Pulling from intersystems/iris-community
5526e9f3d5c5: Already exists
352b407541ae: Already exists
f6bff04f5338: Already exists
8c3b528467ff: Downloading [=======================>                           ]  125.8MB/262.2MB
e2b23b0bff05: Downloading [=============>                                     ]  124.8MB/462.1MB
failed to copy: httpReadSeeker: failed open: could not fetch content descriptor sha256:8c3b528467ff8cc07d86a4979e3e7b8fd36734205539923c8750e1d523f23367 (application/vnd.docker.image.rootfs.diff.tar.gzip) from remote: not found

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