Bug w/ running total feature in Forms w/ Groupings

Bug w/ running total feature in Forms w/ Groupings

I have a Form set up with both Groupings and a Sum enabled for running totals. There is a running total for each Group, as well as a final total for all records. However, the problem is that the Final sum seems to be counting each record AND each group subtotal above 1, which means that some records are counted twice and the final totals are much higher than they should be!

Please advise!