Camera Animation Question

In 2.74, I have a camera animation that is actuated by an OR controller. The two sensors are a property and a keyboard.

When the key is pressed, the frame count goes and the camera animation occurs.

When the property is triggered the frame count proceeds but the camera doesn’t move.

Is this normal operation, a known issue or a bug?

This does not seam to be related. Please create a demo blend and post it here.