Problems with recording audiotracks

Hi,

  1. I connect Ipad 3 IOS 7.0.4 to Alesis IO dock and my instrument to input 1 and 2 on the IO dock
  2. Start cubasis
  3. Create audiotrack
  4. I press “routing” in the inspector
  5. Choose “stereo” and “1+2”
  6. Check that the red button on the track is on (it’s always on)
  7. Play on my instrument
  8. Nothing happen in cubasis but i can hear my instrument in the headphones when i put on the monitoring on the IO dock…

I have the latest version of cubasis, and as I said it works in other apps.