Get all scalar and vector parameter default values

Hi,

Not sure if this is a bug or I’m missing something but I would like to grab all of the default values set in my material instance and store them for later use.
This is just so that when I unhover I can set all the parameters back to default.

On construct I try to use this but it returns null with a print string and breakpoint. I’ve also used the getVectorParameterValues with a different map but I still get the same issue.

My work around is to create a seperate array and update the map like so. If anyone has a solution please let me know.