Why Does the Variance Period Balance (Primary Ledger) Condition Display No Results?

I'm trying to set up a summary reconciliation filter using the Variance Period Balance (Primary Ledger) condition, but it's not populating with any results. We have a number of child reconciliations that have either a $0 variance period balance or they have a variance balance, but none of them are coming through the summary filter. I've provided a couple screenshots below showing "Equals $0" or "Does Not Equal $0," but no results for either. Is this a technical issue with this condition within summary filtering?