Deadline has been fixed and is fully functional. This error with Scene Manager still persists.
Batch render jobs that we create manually can be submitted to Deadline and render properly.
Batch Render jobs that are baked from Scene Manager will cause the error. During submission, the first job will always submit successfully, and the error comes up before or during the second job.
So far, tech support from Deadline said
I can’t explain why the “Submit Master Job In Workstation Mode, Spawn Batch Jobs On Deadline” option works, but I imagine it’s not trying to read the scene names at any point. I don’t think skipping the check is a good idea here, though I would be curious about the jobs that work when you enable the previously mentioned setting. I’d expect that having a nameless take from Pulze would cause failures. This may be an incompatibility that needs the engineering team to help out with.
So maybe it has something to do with the way scene names are baked by Scene Manager?