I have been successful in pulling the name from description information where the name is in a table field
Example information

I have an automation set to set the Reporter field to the following
{{issue.description.match("Requestor:\\s*([^|\\n\\r]+)\\s*(?=\\||\\n|\\r|$)").trim}}
I have confirmed via logging that it is pulling the name without spaces correctly using the above code and in the above description example it gives "Mark Dodd" without the quotes.
But it is just setting the reporter to Anonymous and I can't figure out why.