Scale changing from Vizard 3 to 5

[Goof]

I created a simple scene in Vizard 3: characters from Vizard Complete Characters standing in a room (COLLADA file exported from SketchUp).

When I run the script in Vizard 5 (on a separate computer), the characters have not changed but the room has been scaled down to be significantly smaller.

Nothing has changed (same script, same models), where's the discrepancy?