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Surge in altitude upon 1st entering ALTHOLD or POSHOLD

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@llamatrails wrote:

I take off in Stabilize mode and settle in on an altitude. Then, when I flip to either ALTHOLD or POSHOLD, the copter surges straight up. I then immediately pull the stick down to stop its' rise. After that, I can switch mode without any issues.

I was running Copter 3.3.3 and prior releases without this issue. When I updated to 3.4.2 is when it started, and is still there in 3.4.4 . I don't see any parameter that is controlling it.

Does it have to do with the new throttle mid learning feature MOT_HOVER_LEARN ? I have that set to default, which is 2 LearnAndSave . If so, should it be changed to 0 Disabled after it has been saved at disarm?

TIA, Rick

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