Can you run this command and share the output with me?
gst-launch-1.0 -e qtiqmmfsrc camera=0 \
! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 \
! qtic2venc ! h264parse ! mp4mux ! queue \
! filesink location=/home/particle/video_snapshot.mp4 \
--gst-debug=qtiqmmfsrc:LOG
Do you see any devices under /dev/video?
I apologize for the difficulties here, im going to be looking at the camera compatibility this week and making the documentation a little clearer.