@sensei-hacker I'll put this video up. Which might help you see some other strange occurrences that take place as GNSS signal quality changes as planes or quads bank.
Around the 1:56 mark of the flight, you can see the home distance instantaneously increase from 52m to 118m, and that with the Sat count swing around noticeably. And the motor then shuts down in RTH landing.

This swing in estimated position hasn't been uncommon for me to experience over the last year. And it always occurs when the Sat count is fluctuating. But the EPH doesn't really show much of a change. It effects both XY and Z.

But something to note about EPH. Is this rise and fall cycle it goes through approximately every 5 seconds. I originally thought it was related to HD VTX noise. But it can be seen in all my models, analogue too. With this planes having 25cm GNSS module separation to the closest RF emitting device. And it doesn't always occur, even on the same model. Some flights it there in the log, and other flights it isn't. It has me stumped.

Home.distance.mp4

Lost home point after gps failure #10893

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