This is because Swarm is recording UE4 location to a MAGIC place which is NOT “SwarmAgent.Options.xml” or “SwarmAgent.exe.config”.
It is not documented anywhere either.
Mentioning below error there’s no UE4 under D:\Build:
, Callstack: at System.Runtime.Remoting.Channels.Ipc.IpcServerChannel.StartListening(Object data)
at Agent.AgentApplication.Main(String[] args) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealSwarm\Agent\AgentApplication.cs:line 125.
1:53:14 PM: [ERROR] Channel already registered, suggesting another or client is running.
1:53:14 PM: [ERROR] If you feel this is in error, check your running process list for additional copies of
1:53:14 PM: [ERROR] or UnrealLightmass (or other client) and consider killing them.
1:53:14 PM: [ERROR] Sleeping for a few seconds and trying again…
1:53:14 PM: [ERROR] Channel registration failed. Reason: Failed to create an IPC Port: Access is "