Problem saving material in library

[Taiwolf]

Hello.
I am trying to create this velvet material by this tutorial:

I manage to create it and it looks amazing. But when I try to add it at a library, or copy it over other scenes I get only half of the structure copied. I don't understand why is happening this. I n the picture are the 2 examples of material. the first one is the material copied from the library and the second is the original material. I don't want to recreate the material in every scene so I am asking for help. Maybe is not the right way as I do...enlight me please! Thank you very much!

[Beanzvision]

Hi, it might be an issue related to the shared shader. If you can recreate the material without using it, I'd be interested to know the outcome. But as for your original report, I can confirm the nodes are being removed and have logged it internally.
(Internal ID=521949817)