Exporting Submix

I've recently tried exporting a submix from a track on the MPC Ren and each time it bounced the submix this was empty.

I tried this by going to export audio mixdown
selecting outputs submix 1
(wav/24bits/44.1)

Hmnnnn...is there a way just to export the submixes? What trick am I missing here???

For reference, I have one program routed to submix 1 but 3 different tracks making up the sequence (all drums)
and would like to export that via submix, if possible?

Anybody know of a way to make this happen?

Just export the submixes?

Just tried on 1.9.4 -- worked for me on my MAC. Is your submit muted downstream? Is the file the right length, but empty?

Hmnnnn gonna try this again. Last time it just came out mute....will check again and report back.