Setup not working (Workflow not found)

[AshesITR]

I've done rhub::rhub_setup() and a push to my repository (https://github.com/AshesITR/reservr/tree/master/.github/workflows)
Still, rhub::rhub_doctor() complains about not finding the workflow file in my default branch. I have double checked that master is indeed configured as the default branch.

I have found this discussion, but the problem there was that the yml wasn't on the default branch, which it is for me.
https://github.com/orgs/community/discussions/25179

[AshesITR]

I could help myself after reading that this seems to be a GitHub bug: https://github.com/orgs/community/discussions/25219

Renamig the file (to r-hub.yml and back to rhub.yml) via the GitHub UI fixed the problem.