Gitlab Runner not recognizing tags

Summary

A CI job gets stuck with the following error:

This job is stuck because you don't have any active runners online with any of these tags assigned to them: ios
Go to Runners page

Even though the only available runner does have that as a tag.

Steps to reproduce

  1. Create an empty project
  2. Add a basic .gitlab-ci.yml file with a single job having a tag
  3. Add a Gitlab Runner with the previously specified tag to the project
  4. Run the job

What is the current bug behavior?

The runner does not run the job

What is the expected correct behavior?

The runner should run the job

Relevant logs and/or screenshots

Screenshot_2019-09-25_at_14.27.09

Screenshot_2019-09-25_at_14.25.10

This bug happens on GitLab.com

Edited by Dino Srdoč