Help with cloth simulator

[Anonymous]

Hello guys! Before anything, sorry by the english.

I was trying to do one tutorial of cloth simulator to learn more. But on the last

stage of tutorial (9:00 from video), when i have to do the animation to simulate the cloth,

the object of the cloth (in the case of tutorial, the sack of cloth) disapears. The 3DSMax

generate the frames of simulation, but just in the first frame he desapears. 

Anyone can help me with this problem?

TUTORIAL: https://www.youtube.com/watch?v=3wDZhoZ8UgE

[Fadhil_Farook]

Make a copy of your object and apply the cloth modifier again, same settings but in a different position. Also make a plane and apply a cloth modifier, set its settings and run the simulation. See if this issue is present on the plane and the clone.

[Anonymous]

I tryed to do what you said, the plane with the cloth modifier make effect, but the sack no.

I tried to pick the sack, make a editable poly and just apply the cloth and one box with colision

on the ground and change the parameters a hundred times, but the sack disappear every time.

Can be a error of modeling from the object?