Hi @biocit ,
I believe we’ve finally figured out what’s going on here. There’s a bug in the same error handling code path that produces the WARNING: io_uring support disabled (supported by kernel, but initialization failed), I/O performance may degrade message. That situation doesn’t occur on the systems that we have access to, so it was difficult to identify the exact problem.
In an upcoming release we will fix the bug so that this won’t crash the job and will instead fall back to the no-io_uring path, as was intended. For now, if this issue is blocking you, you can disable io_uring via the CRYOSPARC_IO_URING environment variable ( Environment Variables (v5.0+) | CryoSPARC Guide )
–Harris