How to Maintain Stability of Loaded Soft Deformable Objects?

[DeruiZhao]

When I load soft deformable objects using PyBullet, I encounter several issues:

1. Orientation Issues: If I set an orientation for the object, it tends to collapse immediately.
2. Time-Dependent Collapse: After loading the object, it remains stable for a few seconds but then collapses.
3. Parameter Tuning: Are there specific parameter settings or techniques that can help maintain the shape of the soft deformable object, especially during manipulation?

I would appreciate any advice or tips on how to address these stability issues. Thank you!