Okay, Let’s try this.
Can you open Swarm Agent and in the Settings tab set the Log Settings > Verbosity to Super Verbose.
Then go back to the Editor and for a new Default Level (just the floor and basic scene), can you start building the scene. This should print out to the log in swarm and give much more detailed information.
Hopefully this will have something useful in it that I can see. Just copy all the text there into a text file and upload it here.
If there is already stuff in the log, go ahead and use the Edit > Clear Log option. This will wipe it completely and only get the information for this new scene. Since it’s now set to Super Verbose it will being printing stuff automatically there without a light build, which is OK. just want to make sure there isn’t information from a previous build that I wouldn’t necessarily need.
Thank you!