Can't build lighting

When I try to build my lighting, it doesn’t get past 0%, and then it just goes away. I still have the old lighting in the map. I tried deleting the contents in AppData based on a suggestion from Tim Hobson on another question, but that didn’t help.

Here is the SwarmAgent log:

The key part seems to be this error:

9:18:41 PM: [Job] Job has failed! Job executable didn’t exit cleanly. Exit code: -1073741819