You can now see and edit the tip distribution on invoices in one place. To use the tool click on the $ in the Tip column on the Invoices page. From there you can use the "Edit Tip Distribution" button and quickly change how the tip is distributed between visits.
Note: The Total Visits Tip $ is not expected to match the Total Paid Tip $ until the invoice has been paid in full. Once paid in full if those numbers don't match it may mean that a manual change has been made (which can be fixed using this tool).