Hi Eric, if all of the info you shared is accurate perhaps it’s a flight controller orientation issue. Maybe you either mounted it with the arrow pointing to the rear of the drone and did the calibration based on that orientation. Another issue may be in the sensors tab you have the Pixhawk orientation set incorrectly. These are a couple of things that jump out at me.
Have your team give this a review:
Even though it’s the DEXI drone the same principles apply. Can you post some photos of your Pixhawk mounting location/orientation? Lastly, you should upgrade to PX4 1.16 for your AVR drone. Details can be found in this video:
Keep us posted and we look forward to getting you in the air with good position hold!