Total 404 failure for any gitlab pages (group)

Steps to reproduce:

• Create new group: {groupname}
• Create repo: {groupname}.gitlab.io
• Clone repo locally
• Add barebones index.html
• Use the following file for builds - .gitlab-ci.yml :

pages:
  script:
  - mkdir .public
  - cp -r * .public
  - mv .public public
  artifacts:
    paths:
    - public
  only:
  - master

git add .

git commit -m "test"

git push origin master

Pipeline will pass/deploy. new gitlab.io domain will be recognized here:

https://gitlab.com/{groupname}/{groupname}.gitlab.io/pages

But when visiting page, results in 404.

404-result (on a repo I own) has been about 8 hours now .