Column sort in References or Search folders

I recently upgraded from ver 6.x to 10.x. When I am in the References folder or 'Retrieve all' in the search folder, I cannot seem to sort by column. The little arrows switch direction when I click on a column head but nothing seems to happen sorting-wise. Am I just being impatient waiting for a large body (>30K) of references to sort itself?

The sorting works. If you

The sorting works. If you have 30k plus records, it will take longer.