Maintaining a Qtractor session with Carla

Hello,

This may very well fall into the Carla side of things but I figured I'd toss the question out here just the same. I've come to settle on a workflow that has me managing all of my audio and midi connections via Carla Patchbay rather than from within Qtractor. In a perfect world, I would be able to restore my session with 2 steps:

1. Open my .qtr file in Qtractor. This results in all of my busses being created.
2. Open my corresponding .carxp file with Carla. This does load all plugins used by my session and *should* restore all connections.

What I typically see however, is that Carla restores most of the audio connections (everything except Qtractor's master outputs) but none of the MIDI connections. The net result is I usually have to spend about 10 minutes organizing my patchbay in order to get up and running.

I could swear however, that on 1 or 2 occasions I did see everything restored.

So I'm wondering if anyone has any tricks or special insights as to how to most effectively preserve sessions using these tools together?

Thanks in advance for any input.