I am unable to use While loop or For loop inside the calculator . Vision builder just hangs after grabbing the while loop form the functions pallet and pressing OK. Even also if I use while loop in LabVIEW VI and calling it in builder through " run labview vi" in addition tools. What can be the possible reasons?Is it a bug or i am doing anything wrong? I am using Vision Builder for automated inspection version 2013 build 20131018161821.