Failed to connect to Swarm.
You get this when you try to build your light?
Take a look at this thread: Failed to connect to Swarm - Rendering - Unreal Engine Forums 
Also make sure your firewall or antivirus isn’t blocking Swarm.
Failed to connect to Swarm.
You get this when you try to build your light?
Take a look at this thread: Failed to connect to Swarm - Rendering - Unreal Engine Forums
Also make sure your firewall or antivirus isn’t blocking Swarm.