On our production orders we receive imports from an CAD software into the BOMs of Level 1 Production Orders. The information we receive is not per price produced but the complete quantity calculated in CAD for all pieces together. 

The goods needed for producing the level 1 Production orders are produced very individual – this is why we are using “Pegged Supply” in order to create Level 2 Production Orders.

Level 1 Production Orders are reported as finished with split quantities because we need a License Plate Label for each piece produced in Level 1. As we don’t want to post material consumption of Items produced in Level 2 manually this should happen automatically when reporting Level 1 Production orders as finished – however this does often not work because of these issues.

Please note that this issue is reproducible when decimal precision on Unit m3 is set to 4 and not the default of 2.

This have been addressed to be as "By design" based on this LCS link Details for issue 843403 (dynamics.com).

Tested to extend the decimal and did not even fix the issue and kept showing discrepancies in the complete quantity calculated in CAD for all pieces together.

Please consider this for a fix in the future as this is mandatory for all types of business that works with real state industries.