LOV Blank on Misc Txn-Record Lots and Serials page

When you record a miscellaneous transaction (account alias issue) on an item that is lot controlled but not serial controlled, you have the option to hit the "Record Lots and Serial Numbers" button to add lot number details.

On the Record Lots form, there is a drop down for list of values for the lot number, but it is blank.

If you click the search button, you will see the lots available.

In Page Composer, you can disable the LOV version, and enable a non LOV text entry field, but I don't know why the default would be a LOV if it is blank.