I just started having this issue today out of nowhere. Anytime I try to add a new event to my event structure in the producer of a state machine Labview freezes up on me. Whenever I use the task manager to end the program I get a message stating that Labview is waiting for a response from me. After seeing this I tried again and hit enter when Labview froze again. It added an event without any cases and without displaying the Edit window that usually would pop up. I have tried restarting my computer and repairing Labview, but nothing so far has alleviated the problem. Any help would be appreciated. Thank You.