Nested level validation error wrong key, and if then else problem #1375

I am try to validate product data json with Amazon Product Type Definitions schema. but I have two problems.

First One: This is part of footwear_size property, there is 3 attribute are required. size, size_class, size_system.

I check the amazon documents they says ve ara use 2019-09 schema then i use Draft201909Validator for validating. ( also i try another ones.)
First Problem is ValidationError return only base attribute 3 time footwear_size, i cant see size, size_class, size_system attributes.

Second Is: schema says if size_system == eu_footwear_size_system then required age_group. But age_group not appear required errors.
Here is product data json part.

Here is schema if then part.

and i am attaching full schema.

schema.json

Any one can help me ?