We had a bug here a while back. What exact version of DL are you using? Can you upload the full log reports for each job as well? There might be a reason the exr output is not being generated by 3dsMax.
I’m not sure if it’s the same - but it sounds very similar to the problem I have and maybe it’s helpful.
In my case, 3ds max render elements are not saved when I submit jobs with the SMTD and setup to render with the V-Ray framebuffer. I already opened a ticket (#553703).
Mike Owen,
Do you have an email I could send you the logs to. There is some private information displayed in the logs that i would prefer not to share online.