Incomplete/incorrect relations between two tables in Excel Power Pivot Data Model

Greetings Excel Community - this is my first posting here..  Seeking expertise in building a Power Pivot Table leveraging two different tables of data loaded into the data model using the latest subscription instance of Microsoft Excel 365.  I'm struggling to create properly working relationships between the tables within the datamodel.  Each table represents labor data for a series of independent work tasks tracked within tickets called Repair Orders (or 'ROs').  It's an automotive shop environment with multiple 'Techs' (the hourly laborer) and their tasks/jobs.  The Repair Order numbers are unique, and may or may not exist in both tables.  Associated with each RO are two different types of job time data:  1) actual 'logged' time data (in fractions of an hour), and 2) amount of labor time billed out to the customer, often a 'flat-rate', or fixed charge for a task.  In theory, these two labor values could be the same, but there is often variation due to efficiencies, unplanned issues, etc.    

The actual labor data is (usually) logged into the ticket across multiple dates as discrete entries.  So each row of data has:  'RO number', 'date', 'labor-time'.

The billed labor data is comprised of multiple tasks, each with an amount of labor time, so this data looks like:

Row1: 'RO number', 'labor-time 1'

Row2: 'RO number', 'labor-time 2'

RO #                       LaborHoursPerTask

</snip>

Snippets of data from actual labor hours logged per RO, per date:

RO#             InvoiceDate      LaborHours

I want to create a table which displays the total amount of both types of data - 'actual' vs 'billed' - for each RO ticket.  Here's the result I'm currently getting, and you can see the logged hours are improperly all rolled up into a total sum value, instead of the discrete amount per RO.

RO                   SumofBilledHours  SumofLoggedHours