Swarm fails to Kick off 4.2

Hello all,

I am trying the remove the message “Lighting needs to be rebuilt” in the FPS Shooter template project in 4.27. Firstly, I click in the Build option ->Building Lighting only and then receive the message:

  • Lighting build failed. Swarm failed to Kick Off

After that I did some checking and found that it might be caused by Antivirus/Windows Defender, which I then switched off but I received the same error message once again.

So, what do I need to do to get the lighting to work correctly?

Thankyou and Regards.