FS_MasterField Ref in blueprint

I am getting the following error from my blueprint;

Blueprint Runtime Error: “Accessed None trying to read property FS_MasterField Ref”. Node:

I am uncertain how to give a value to FS_MasterField.

Hey there @FrankUnreal51! Welcome back to the community! In the BP, are you intending to reference the engine folder’s FS_MasterField class or an instance of it?