Did you tick the box to 'Rebuild Model for Each Frame' in the fly-through/sun-study options?
If you did and that didn't work then objects can be scripted to react to the camera frame number.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
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