Encountered an interesting error when I ran my .NET console app which updates a NS custom record. I didn’t recognize the “element” it was complaining about because based on the name of the element, it wasn’t even related to the custom record that I was updating. Turns out my .NET code was referencing the id of another “element” which happened to be a script parameter. This was on sandbox and a few days ago I ran a test against release preview and forgot to change the id back to the sandbox internalId.