Severe over-correcting / pitching problem

@anparkinson wrote:

My Hobbyking Go Discover (see photo) has been flying perfectly on the APM2.0 on auto flights after running autotune.

Suddenly it's developed this issue where it pitches up and down for about 30 seconds as if over-correcting. See short video here https://youtu.be/wR-r2i0N12w

Copy of the PID values on attached screen shot. I guess one or more of the Servo Pitch PID values should be reduced but not sure which one or how much.

Any ideas? Thanks.

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PIDs.jpg1001x768 73.2 KB

Image may be NSFW.
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Go Discover.jpg1365x768 241 KB

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