A bit befuddled here, hoping someone has encountered this before...
My SharePoint 2013 custom list is not returning any results when searching it for a name in a Person or Group (single selection) column. List search for all other columns is working, and the person or group column is indexed. The list view threshold is not exceeded - we're just shy of 4,500 entries. Searching person or group columns on other lists on the site is working.
The filter on this column works so I have the team using that as a temporary workaround, but it's slower than search and I'd like to get that function back up and running.