I have an assembly with many levels and there is an subassembly  that in general BOM it is not sowing his components. The upper level subassembly BOM is correct. I can' find any solution to obtain a correct BOM on main assembly. Usually for that problems I open the main assembly in SW and from there I make a checkin and the resulting BOM is correct but in this case this method does not working.

SW 2008 sp5.0

PDMWE 2008 sp5.0