Apparently the latest update for AE CS4 have introduced some rather strange effect - NaN value!
The script which worked fine before now crashes. After some debugging I have found the following.
3D Solid layer,
property Orientation with just one key
keyInSpatialTangent(1) function returns the following
[0, NaN, 0]
Not only I've never seen NaN value in AE before, there is also no way to work with this value either.
Anybody has any idea what is that, other than a bug ?