Agent-Based Installer (ABI) hangs while installing in a disconnected environment

Issue

• When trying to install a Red Hat Openshift Container Platform (RHOCP) cluster in a fully disconnected environment using Agent-Based Installer (ABI) installation hangs forever
• No error message is shown prior to the hang nor during the hang itself
• No error messages are shown even when using the debug log level

• When using debug log level ABI hangs at line showing quay.io mentions, like:

  $ ./openshift-install agent create image --dir . --log-level debug
  DEBUG OpenShift Installer 4.12.0
  DEBUG Built from commit ba940311c8cb2a07173725e5c2f668df7c61924c
  DEBUG Fetching Agent Installer ISO...
  DEBUG Loading Agent Installer ISO...
  DEBUG   Loading Agent Installer Ignition...
  DEBUG     Loading Agent Manifests...
  DEBUG       Loading Agent PullSecret...
  DEBUG         Loading Install Config...
  [OUTPUT OMITTED FOR SHORTING PURPOSES]
  INFO Extracting base ISO from release payload
  DEBUG Using mirror configuration
  DEBUG Fetching image from OCP release (oc adm release info --image-for=machine-os-images --insecure=true --icsp-file=/tmp/icsp-file1217138479 my-container-image-registry.example.com:5000/ocp-release@sha256:4c5a7e26d707780be6466ddc9591865beb2e3baa5556432d23e8d57966a2dd18)
  DEBUG extracting /coreos/coreos-x86_64.iso to /home/user/.cache/agent/image_cache, oc image extract --path /coreos/coreos-x86_64.iso:/home/user/.cache/agent/image_cache --confirm --icsp-file=/tmp/icsp-file0123456789 quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:d4b0cfad345fbb97c2d092268dc53cdec17c5e3115212fefcfb58c7ac4652717