For macOS the documentation specify that only one runner is supported per machine. But nothing on the Windows page.
But in practice, I set up two runners at the same time, and if one is doing a very long step, and I start another pipeline that would be handled by the second runner, it gets stuck on its first step (with no apparent message, just nothing is displayed in the web UI, and when I check its logs on the machine, it shows it finished its step but didn't start the next one) until the first pipeline is completely finished.
Is it a known issue ? Or are multiple runners also not supported on Windows ?