Issue with daisy-chained worflows with "workflow_run"

Hi all,

I belive I found an issue in GitHub Actions that occurs when you daisy-chain more than four workflows with “workflow_run”.
Only the first four are executed and not the rest of them.

Here are 9 workflows (identical apart from the first one):
https://github.com/abelikt/github_tests/tree/main/.github/workflows
When executed (manual dispatch on the first), only the first four are executed:
https://github.com/abelikt/github_tests/actions

Is there a specific project where I should report this?

Best regards, Michael