Why Decay Bone animation is very fast?

[alex-wow-xxl]

Hi!

Decay Bone sequence duration of my model is 60000 like duration of most models in WC3...
So why if some unit of this type is killed during the game, someone is dacaying correctly, but someone is dacaying factualy at the same moment after Decay flesh animation is finished.
Intervals of all sequences of this model is not crossing. What is the reason of the different durations?

 

[Hantoo]

Im not sure but i think it can be changeable in Editor, I don't know though