Yaw variation in position control mode

I am using cubeorange autopilot with px4 1.11.3 firmware. In position control mode, the UAV is stable , but the yaw value is fluctuating around the yaw set point by 2-3 degrees continuously. Is it a normal behaviour ? if not, how can i resolve this?
Thank you.

Hey there.
Where is your vehicle getting the yaw from?
I’d say either way 2-3 degrees of deviation are absolutely fine (it’s working to hold it’s position).

Please can confirm you are using a VTail setup file for your fixed wing