I have serious problem that is being applied to more or less all of my models/animations - I have tested two of them, both with weird results...
The animation as it should look like in Maya is:
http://www.3dpeople.de/correctAnim.jpg
The weird deformations are shown in Viewer:
http://www.3dpeople.de/incorrectAnim.jpg
and
http://www.3dpeople.de/incorrectAnim2.jpg
It might be as the result from the IK solvers, controllers, or using character but I don't have a clue exactly where the problem can be....

Update: Obviously it is the result of using IKs, when I deleted these, the animations seems to be exported "correctly", although the animation sucks of course;-))
Any idea how to deal with this f@$# exporting problem?;-)