Record picker - "No results found"

Record picker keeps returning "no results found". As far as I can tell the Record is defined correctly, as I can view it in Tempo and use the search functionality. I'm I missing something? I've set the record type per typing into the recordType field and having it auto complete what I was looking for, and I've defined a local variable for value and saveInto. 
I noticed one other answer to this similar questions said to "Over in the Record Type, find the Record Title section, which displays an expressionable field. In that field, type rf! to get a list of available fields to use as the Record's title." However, this does not exist.

a!pickerFieldRecords(
label: "Record Picker",
labelPosition: "ABOVE",
recordType: 'recordType!PO Offices',
value: local!storedRecord,
saveInto: local!storedRecord,
required: true,
)

Note: I'm using 20.1

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