I know I'm a few days late to this, so I'm wondering whether you've made any progress. We experience this, too, but in a different way.

First, though, you may be aware, but you should use salloc rather than srun --pty for an interactive session. That's been the preferred method for a while, and one reason is that you can't run an srun from within an srun. So I wonder whether that has something to do with it.

We run an old version of Open OnDemand, and what we see is when a user starts a virtual desktop session on a node and then submits a job with sbatch, once it terminates/dies, the virtual desktop session terminates too. I think this happens only when the job ends up on the same node on which the virtual desktop session is running. I haven't delved too deeply into that, but I suspect the virtual desktop session might be launched with an srun in some way, and somehow this is affected by something that happens when submitting an sbatch. I know that's super vague, but I haven't really gone too far with it, though the errors are similar (and in fact might be identical, it's been a few weeks!).

Warmest regards,

Jason