Reading both infrared + depth does not work for original Femto

I’m stumbling into the following issue:

  • Connect Femto camera (the first Femto ever released)
  • Start CommonUsages.cpp sample
    => Color and depth streams appear, but no infrared


  • when connecting Femto Bolt, all 3 streams appear as expected.
  • when starting the InfraredViewer sample, IR does appear. It seems it somehow cannot be combined with depth.
  • I’m using GitHub - orbbec/OrbbecSDK: Orbbec SDK C/C++ base core lib (updated today)
  • It works as expected (all 3 streams) when using the viewer (v1.8.1)

Does anyone have a clue what the viewer is doing differently, or what could be causing this?