Lighting Build Failed. Swarm Failed to Kick Off

I’ve had this problem for over a month now. I looked through pretty much all the posts on Answerhub about this problem and tried different solutions to no avail. The problem started happening when I made a duplicate of my project from 4.6 to 4.7.

  • Firewall is off for Swarm
  • Copied everything in level to another level, still same error
  • Haven’t tried deleting all the lights in the level and putting them back in because there are way too many lights and it would take too long

I really need a solution to this problem.