I am building the attached model based on another running model. but I've run into the error "time: 3.671847 exception: Error: Invalid list reference at push to list activity "Patient Process/Acquire Exam Table?" in process flow 'PatientSubFlows,.'" This occurs in the "Acquire Exam Table?" Activity with the red background. I have the feeling that it is something simple but I am unable to see what.
Thanks for help