Clickdetector does not respond when sitting in vehicleseat

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As you can see, even if MaxActivationDistance is increased, only a small range is recognized.
Do you know what’s wrong?

Are you sure the player’s head or hat isn’t blocking the clickdetector? or any other parts? never seen this before

I do not wear a hat.
This occurs when you use A-chassis6.81T and put clickdetector and parts in “Body”.

solved.
When CollisionFidelity of Meshes part is Default, Collision does not seem to work well with Meshes with complicated shapes.
It works by changing to “Box”!