Copy Material Function from one project to another

I am reusing a material by simply copying the .umap asset into my Content colder.
However for some reason the Material Function inside my material is not being copied.

I can open the Material Function and just copy the Expressions(nodes) but they end up losing all their connections after pasting!
This was supposed to be fixed in 4.24?

There must be a way to easily copy materials using Material Functions.
Can someone help?