@Adrian-Hidalgo Correct, this is on an m500 drone. I intend to fly to GPS waypoints in mission mode (I have done this a few times successfully before noticing the local_position_ned was drifting). I didn't see the vehicle drift while in flight but wanted to double-check before flying again. I am not sure when the local_position_ned began drifting. I have tried resetting qvio - seeing that doing so had resolved local_position_ned issues for someone on another forum. I have the drone on my desk and powered from a 12V 3A wall power supply - I believe that is why the battery status reports zero (when I use a lipo, the battery status looks correct). & yes the vehicle parameters have been loaded.
M