Auto mode thrust decrease propeller shut down

I have a problem when change mode from manual/stabilized to auto mode(mission/loiter/position),the thrust almost shut down immediately,and the propeller in front of my fix-wing doesn’t spin at all.
Once I switch mode from stabilized to mission,the controller reject auto mission,thrust decrease to 0.

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this is the log
https://logs.px4.io/plot_app?log=6599f8bb-5336-4dae-b23f-f1838d06f0bf

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