Bicopter Unable to Auto Takeoff

I am having trouble performing an auto VTOL takeoff with my bicopter set up. I can arm the vehicle but the motors fail to spin.

If I manually choose takeoff in mission planner, the motors spin up as expected. I am unsure why the auto missions are not working. All i am trying to do at the moment is takeoff to a meter or two and land.

I did see a message display on mission planner after reenabling all fail safes stating “Prearm: Quadplane: check motor setup.”

Param file:
some_changes.param (19.7 KB)

Any help would be appreciated!

The solution was to update firmware from plane 4.1.7 to 4.2.0b4. Solved the issues! Not sure what was wrong.