@Rocky12345 , welcome to the Rockstor community. What version of Rockstor are your running (top right of the WebUI?
As you can see on recent forum posts, the latest testing versions had/have some issues around shares, etc. so want to ensure we’re looking at the right context.
Have you passed through the virtual disk as a “unique” device? I see some posts on here from a long time ago around virtual disk serials. I am not sure whether these still apply or not as I am not a proxmox user, e.g.:
A quick browse on proxmox forums, it seems to me that the passthrough feature for virtual disks has still not be implemented (for physical disk passthroughs, that has been around for quite some time), so the forum post above might still be applicable.