Cannot Create LVM on iSCSI storage

I set up a new instance of TrueNas 12 Core. I am attempting to setup iscsi storage to TrueNas in Proxmox. The vdev was created in TrueNas along with the iscsi target. I have created the iscsi connection in proxmox and it is showing as available but receive the following error when I attempt to create the LVM storage in proxmox.

create storage failed: error during cfs-locked 'file-storage_cfg' operation: command '/sbin/pvs --separator : --noheadings --units k --unbuffered --nosuffix...

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