qdelpeche, thank you for your reply!
According to FXB Animation pipeline:
“Currently, only a single animation for each Skeletal Mesh can be exported/imported in a single file.”
Yes, I have only one animation/file
“… Having a mesh bound to the skeleton is completely optional, though it makes the process of creating the animation much easier as you can see how the mesh is deforming during the animation. At export time, only the skeleton is required though.”
Yes, all this is correct with my files. To my understanding I have exported them as this documentation suggests.
I uploaded an example of the fxb that fails to import. If someone here in the forum had a time to try import it, I would appreaciate it.
http://www.321webs.com/download/87328.htm
Thank you.