Unable to get BAREOS to work with s3 compatible object store

[James Pulver]

I've been trying for weeks to get this to work. I now have managed to set up the dplcompat plugin, and have been able to follow troubleshooting like https://github.com/bareos/bareos/discussions/2063 from the command line - CLI commands all work. But when I try and run a backup to the s3 storage device in BAREOS it just hangs. No errors noted, and status in director shows the job running forever, and status on the storage shows 

Device status:

Device "obj" (ObjectStorage) is being acquired with:
    Volume:      Full-0011
    Pool:        Full
    Media type:  obj
Backend connection is working.
Inflight chunks: 0
Pending IO flush requests:
   /Full-0011/0000 - 230 (try=2)
    Device is being initialized.
    Total Bytes=230 Blocks=1 Bytes/block=230
    Positioned at File=0 Block=229
==
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Used Volume status:
Full-0011 on device "obj" (ObjectStorage)
    Reader=0 writers=0 reserves=1 volinuse=1
====

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It never progresses. I'm really not sure how to proceed.