When running the PX4 JSBSim bridge via make px4_sitl jsbsim on Ubuntu 18.04 and with QGroundControl connected, I'm finding that about every other attempt to takeoff after uploading a mission will fail with the drone falling out of the sky. When this happens the PX4 console outputs a poll timeout 0, 22 error and QGroundControl outputs a Critical failure detected: lockdown dialog.
When running the PX4 JSBSim bridge via![px4_jsbsim_failure_to_takeoff](https://user-images.githubusercontent.com/5205889/134056041-1b681010-10d1-41fc-8fa9-787789c87413.png)
make px4_sitl jsbsim
on Ubuntu 18.04 and with QGroundControl connected, I'm finding that about every other attempt to takeoff after uploading a mission will fail with the drone falling out of the sky. When this happens the PX4 console outputs apoll timeout 0, 22
error and QGroundControl outputs aCritical failure detected: lockdown
dialog.