Does Neodex not export animation with IK properly?

[Idaero Ace]

Hey, I wonder if its the tool or my problem. I’m rigging with IK with Blinkboy’s tutorial, and set all IK manipulators positioncontroller to Bezier so I can use curve tools. (In Blinkboys tutorial, he only use Bezier on root bone though, but I already read Art Tools guide)

My problem is, on some bit complex animation, the foot is like to move by itself. They should be hold their ground... (video/ gif will be sent later). So it looks great on 3dsmax, but after export to mdx, not that good. Anyone else having this problem? I wonder what cause it...

 

[Obito Uchiha]

i animate With 3ds max (cat) and export the model with neodex.

 

[Idaero Ace]

i animate With 3ds max (cat) and export the model with neodex.

Dennis
and the models exported perfectly?

 

[Obito Uchiha]

yeah perfectly, without bugs, But still the filesze problem...