Workflow does not run

All executions of a specific workflow are stuck with the following message:

Waiting for a runner to pick up this job…

This is serious blocker since we can’t run our CI/CD pipelines.

Is anyone else experiencing the same?

did it work before?
Check runs-on that you have correct label(s) of a runner.

Thanks for your reply @ViacheslavKudinov. The problem was actually with my self-hosted runner (i’m still not sure what’s going on). If i change back to ubuntu-latest then it works again.