Nintex Newbie

Copy the SP Modern Web Part Calendar Hero URL

I have a calendar on the Marketing SharePoint site and I am using Nintex Workflow to copy all of the items on creation and modification to the Sales SharePoint site marketing calendar. This way, the Sale team's homepage can display the marketing team's calendar using the modern web part for the calendar. 

This works flawlessly, and my users love it. 

What kills me, is that I cannot seem to copy the Hero URL properly to the Sales site calendar. The Hero URL should be the URL to the Hero image on the Modern Calendar Web Part. 

THANKS for any assistance.