Rigify - everything works fine in metarig but after generating rig it doesn't

I created additional skirt rig to rigify human rig. Everything was working well when I was making the metarig but after using rigify to generate a rig, the skirt bones stopped following the leg bones. Why the generated rig doesn’t work and how to fix that?

https://drive.google.com/drive/folders/1ApVQaZlrc6nXh7_6O-ggH5Wyhci902Z8?usp=sharing

i can’t download your files and it would be better if you could provide the metarig as a blender-file than mp4-files

I think I fixed it, skirt rig wasn’t following the legs because rigify added stretch to bone constraints to the skirt bones in ORG collection, probably because I used rigify samples to create the skirt rig. Thank you anyway for answering!