Rule input data is not getting transferred to process variable

Hi Team,
I am starting the process model by triggering us start form, once a user click submit button in the interface ideally all the role input data should be transferred to process variables. But in my scenario one of the Rule input data is not transferring to the process,
When is the click a submit button the data is getting saved in a role input properly ri: emailBody(Text)
But the same data is not being transferred to the process model please refer the images below pv: emailBody(Text)