It looks like with the most recent version, items that circulate at a different library then the call number owner are no longer correctly showing in the holdings view. You can see them if you use "Show Empty Bibs", expand the call number/volume owner even though it says 0 copies. but if you don't use the "Show Empty Bibs" option you cannot see them at all.
3.7.3
3.8.1
It looks like with the most recent version, items that circulate at a different library then the call number owner are no longer correctly showing in the holdings view. You can see them if you use "Show Empty Bibs", expand the call number/volume owner even though it says 0 copies. but if you don't use the "Show Empty Bibs" option you cannot see them at all.