Pozyx with ArduPilot for non-GPS navigation

Hello,

I am having some problems regarding the UWB positioning. At startup the position calculated by the EKF3 gains a random offset, I describe this problem in depth in the following post:

https://discuss.ardupilot.org/t/ekf3-large-position-offset-after-startup-using-uwb-beacons/85037/5

I would appreciate it if someone could take a look at it.