Hello,
I am just trying the demo/trial version and when I try to export an FBX file the export window reminds me the export amount left for the demo but also tells me that my animation exceeds 20 seconds and will be truncated but the actual length of the animation I am trying to export is just 330 frames which will be about 6 seconds @ 60fps or 13.5 seconds @24fps 

So when I open the FBX there's is only 131 frames of animation :ermm::ermm:

Am I doing something wrong?