Contact Light Lenght is not working with Hair Material

Hello everyone,
I’m facing a possible issue on the unreal engine 4.25, I’m using the same materials and lights from UE4.21 but the lights is not detecting the “Contact Shadow Lenght”, the effect looks like is working just on solid materials and is not working with Hair Materials. (All the hair was creates using hair cards).

Anyone have any suggestiong about what is going on?

Thanks for your time and attention.