LEAP 15.1 No LUN for LIO iSCSI after reboot

I created an iSCSI LUN export on Leap 15.1 using LIO and an unformatted volume, and my clients had no problems scanning, mounting and formatting it. However, after a Leap server reboot, the client can no longer connect. It is seeing the iSCSI identifier just fine, but reports there is no LUN at that location. When I go into YaST, there is no LUN listed in the config, but if I try to readd it, I am told that it cannot create a LUN on that backstore. targetcli lists one target for iscsi, but no LUNs. How should I go about getting my storage back?

Any help is appreciated.