Yes, I was using the new Create Locator tool in ArcGIS Pro 2.4.
Addresses are from a point feature class stored in an Oracle SDE database.
"Have you tested with other unit types ("#", "Unit", "Apt", "Bldg", etc.)?" Not sure I understand this question. We have a variety of unit types stored in the UNIT_TYPE field. Values include SUITE, APT, UNIT, etc. So when you say "have you tested.." I am not sure what you are asking. I have tested addresses with both a SUITE and an APT unit type. I am expecting to put in "606 MAIN" and have candidates with units show up in the candidates list. What I am seeing is just the primary 606 MAIN ST address (see third image below).
I have attached some screen shots showing how I defined the locator and what I am seeing when using it. I only showed
the "Field Mapping" values that I thought were relevant. If you need to see all of them I can create more screen shots.



Using the locator in Pro - I would have expected to see all of the 606 Main St addresses in the list box (or at least the first 6 addresses).

Even worse, the address points for 2220 CLINCH AVE, which all have unit numbers, never show up in the list of candidates.
Thanks for the help.