Just out of nowhere some bug had found me
Every time I build project I get UE freeze and this errors in Swarm:
21:42:02: [ERROR] Channel already registered, suggesting another SwarmAgent or client is running.
21:42:02: [ERROR] If you feel this is in error, check your running process list for additional copies of
21:42:02: [ERROR] SwarmAgent or UnrealLightmass (or other client) and consider killing them.
21:42:02: [ERROR] Sleeping for a few seconds and trying again...
AnswerHub thread