Hybrid Workers should not require WoW64-Support
Hybrid Runbook Workers require WoW64-Support to function.
Worse still, there appear to be absolutely no errors reported anywhere regarding why runbook jobs won't start.
Event a simple "Hello World!" job remains in Queued and quietly transitions to Suspended. There are zero logs shown in the Automation/Runbook blades and zero logs shown on the hybrid worker.
Re-adding WoW64-Support feature allows runbooks to start again.