Zoho Reports Duplicating Entries

Zoho Reports Duplicating Entries

I have a custom costing tab with a table where we entre invoices. These are under a Heading (PO Subject) and notes added in the form with different line items.
In the reports, I have organised the report to group per PO Subject, with the total of the line items. However, it is duplicating the PO Subject line items with the total amount.
In the attached, you can see the duplicate items, and the totals not matching. 

I found that unselecting the Show Row Count fixed this, but now its happening again with this box still unselected. 
Can anyone tell me what is happening here? There seems to be more and more glitches every time we use the CRM.