Hello there.
I have some troubles and an issue with a cloth simulation. When I baking the simulation and start playing it on timeline, clothing (pants) on a left leg of a character is messing up and going inside mesh. On 15th frame it doing same thing on a thigh and on a knee.
First I tried to scale character and pants (scaled by 3 points) and made another bake. The result was same, as before.
Than I thought about the geometry, so I added subdivision surface modifier to mesh, but it did not helped too.
Next to it, I checked character’s and clothing normals, but they also look outside of meshes.
The last and a very important thing is collision, so I added quality steps and reduced the distance (same on the character). Unfortunately, It didn’t help and the result was pretty mush same.
Characters collision settings:
Clothing collision settings:

Modifiers on the clothing:
I also attach a link to file on the google drive (cause of packed materials, even with removed PS (Particle System).
https://drive.google.com/file/d/1pmRiMVmRMwSuUt8B8p3_2ZHKyzDolFyI/view?usp=sharing
Also about the scene itself:
- a simple animation for leg and hand
- bake was removed
- subdivision surface modifier turned off
- pants parented to rig with just automatic weights (not with data transfer or hand-painted)
A full version as it is with bake:
https://drive.google.com/file/d/1NUpZRm1CXOBluovd2F1mvjKkDgWgpQO0/view?usp=sharing
What am I doing wrong? I would appreciate any help.