MMD to rigify breaking when adding physics

[shep91]

My steps are as follows:

Load mmd model generate meta rig link rig to model with respect to rigify add physics

For some reason, it ends up looking like this:

I also made a video showing the process

https://youtu.be/E9VV50mYGyY

Is this a bug, or am i doing something wrong?

[UuuNyaa]

Perhaps the following URL will help you: https://mmd-blender.fandom.com/wiki/Why_is_physics_broken%3F