Tracing a batch in multilevel BOM

Hi Experts ,

I have a scenario as A,B,C,D,E as my multilevel BOM.  Now A has been batch managed and B is not batch managed and

rest C,D,E are again batch managed with batch number .

When I was tracing my batches in top-to-bottom approach in MB56 , I found A has no linkage to C as it should relate both with batches as both are linked in BOM and batch managed.

i doubt B is not batch managed ,that is why tractability is broken .

Can you please advice or some configuration required for these settings.

regards

Ankit