Many VIs that ship with LabVIEW have debugging turned off. This can improve runtime performance, but it also prevents anyone from stepping through the VIs. If you want to step through these VIs, you can turn debugging back on from the VI Properties dialog (Ctrl-I, then go to the Execution page). I would suggest turning debugging back off to return the VIs back to the state in which they shipped, once you are done debugging.
↧