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LabVIEW hangs while Teststand User Interface executes command for Edit steps set

Hi,

 

I am using Teststand full-featured user interface and extended it with the addition of extra features. I have a custom step in teststand that has a VI which will run when edit step is triggered and I want it to be triggered when the custom step is clicked. So I created a callback for the event 'selection changed' of sequence file view manager. The callback will check whether the step clicked is the custom step and trigger edit step set using get command and execute nodes. 

The command calls the VI, VI starts running but at some point in the VI, it suddenly stops executing even though all the inputs have arrived. Even the debugging tools become disabled at that point and nothing works after that. 

The VI runs properly when the same edit step command is triggered from the button click or somewhere else in the code except in this callback. Please share if you have any suggestion. 

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