File structure is as shown: Top-level Assembly- (3) Sub-Assemblies - Multi-Body Part file. To clarify, the assembly has 3 instances of the same sub-assembly. The sub-assembly has 3 unique multi-body part files (in addition to some fasteners).

When I create a BOM in a drawing using the Top-Level Assembly for the drawing view, the BOM shows (3) sub-assemblies, (1) part file, and 1 each of the weldment bodies. It should be showing (3) part files and 3 each of the weldment bodies, right?

Am I missing something obvious? I have never encountered this problem before. 

Below is a screenshot of the BOM properties.