Single PDF's Failing Consistently

I have a project looking to print single PDFs for each of the model, 100+ sheets on some of the bigger models so each task handles 1 model and the tasks are spaced out 1 hour per.

Somehow this performs worse (as reported by team) and uploaded fewer sheets than 1 single task ran against all 7 models at once.

BIM360 Post-Action is the end goal here, and all our cloud folder structures have valid configs.

Please advise on how to best single-PDF from a BIM360 project and upload them back up to BIM360.

Will be trying a separate test where it 1) gets uploaded to Sharepoint first, 2) then uploaded to BIM360