Wind Estimators: standalone vs. EKF2

We have been logging wind estimates on our fixed wing aircraft, running EKF2 and the standalone wind estimator:
https://github.com/PX4/Firmware/tree/master/src/modules/wind_estimator

They both log to the same file, and have contradictory estimates. The EKF2 estimator populates only some of the fields, so the remaining fields are memory garbage.

Before I file a bug report, are we making an error by using both at once? What is the purpose of the two estimators? Which should be preferred? They both look like recently updated code, so it’s not at all obvious what we should be running.

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I’m interested to find out what you learn.