Question for RME HDSP-TotalMix users

Unfortunately, I spoke too soon:

When I toggle in and out of record mode, my faders only work with TotalMix when Cubase is stopped. When I run the Cubase Transport to hear playback, the TotalMix faders jump back down to zero gain. The same is true with my Studio Sends and panning: They only respond to Direct Monitoring when the transport is stopped.

Any thoughts on why this is happening?