Try setting selection tolerance using AIS_InteractiveContext::SetSelectionSensitivity (const Handle(AIS_InteractiveObject)& theObject, const Standard_Integer theMode, const Standard_Integer theNewSensitivity). It may help fixing your problem.
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shape not detected
When building a cuboid that is large in length and width (500*500), but about 5 in height, construct a larger face (5000*5000) at the bottom of this cuboid. When the model is too far away from the camera or at an Angle, MoveTo will not be able to accurately detect the cuboid
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