Comment 4 for bug 374665

Attached is another crash on start-up loading the data from MixxxMidiBindings.xml for the SCS.1m. I got it to this state doing the following:
1) Plug in SCS.1m and SCS.3d
2) Start FFADO's test-scs
3) Start Mixxx
4) select the SCS.3d & load its mapping
5) load a song, start playing, verify feedback on the SCS.3d. All was well
6) with the song still playing, switch to the SCS.1m & load its mapping. Song stopped.
7) Operated the SCS.1m, started a song playing, all was well.
8) Back to prefs, switched to the SCS.3d with song still playing, leaving the .1m mapping. (Trying to see if it was sending feedback.) Feedback seen on the SCS.3d, though incorrect of course
9) Closed Mixxx. (I don't remember if it crashed then or not.)
10) Started Mixxx again and it crashed. Log & backtrace are attached.