there is a problem when I play a motion; the model's part is disappearing
Example:
https://ecchi.iwara.tv/videos/p4wy6sevluooxrw5
as I explained on the post, the model's leg will always disappear at the same moment
I try exporting the video in low resolution and low FPS but it always happend
anyone experienced similar issues?
You have to solve this problem in the PMX-editor.
question, do you activate any morph at the moment the leg disappears? if so, it is a problem with that morph.
If not, then you have to check the model very well in the PMX-editor to find any problem
no other than facial expression...
which part of the model editor do I have to look in?
Something similar happened to me with a "bone morph".
I imagine that your problem is in the IK chain of the feet, maybe if you open the model in the pmx-editor and open another model that works and copy the "loop" and "angle" parameters from the IK bones of the feet.
As a general rule, modified public models are a disaster and many things have to be fixed to make them work well.