RCPIER deletes strut-and-tie model for hammer head piers upon return to main LEAP Bridge Concrete screen.

When using RCPIER and the strut-and-tie model for hammer head piers my strut-and-tie model deletes after I exit RCPIER to the main LEAP Bridge Concrete screen even after saving and generating reports. How can I preserve my model upon exiting RCPIER? 

I am using LEAP Bridge Concrete Version 18.00.00.34

Thank you for your assistance!