Mid-flight "landing" detection

[Witloofboer]

XCSoar versions having the problem

v3.23

XCSoar versions not having the problem

v3.22

System information

Old SteFly 7" (CH70) with sensorboard disabled, linked to both a Borgelt B500b and a RedBox FLARM

Steps to reproduce the behavior

Random "fake" landing are triggered in OpenSoar.

Expected behavior

No random "fake" landings.

Actual behavior

Landing is triggered mid-flight.

Do you have any idea what may have caused this?

I have seen in the past that every now and then, the FLARM's GPS glitches. I am assuming that the GPS glitch triggers a landing. Earlier, when operating with FLARM only, it would show that the GPS was looking for a fix, but now it seems to trigger a landing.

Do you have an idea how to solve the issue?

Haven't looked at it, will do so during winter.

[Witloofboer]

Test flight confirms landings are triggered by FLARM GPS glitch.

[Witloofboer]

Using the least- or non-glitchy GPS receiver as first device in the device list prevents the landing from being triggered.