Motor calibration menu in QGC disappears, lots of "parameter missing" errors occur

Hi @VioletCheese,

  1. Which ArduSub version did you base your custom firmware off?
  2. Which QGroundControl version are you using, and on which operating system?

Your issue sounds similar to (but potentially more severe than) this one, where QGC doesn’t fully register the vehicle as Sub.

  1. Do the workarounds in the Detailed Description section of that issue work for you?
  2. Does it help to use BlueOS instead of the Companion Software?