Hi Michael.

This sounds like it's probably a MIDI drum issue. To check this out, the patch map for MIDI drums is found via the information in the image below (in BIAB Preferences/Options). Check to see that '35' is added to the bass drum boxes. (The numbers in these boxes correspond to the MIDI note number that is set to a particular drum sound on MIDI Channel 10.)

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Regards,
--Noel

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