Unable to see Contents in Block Diagram(Labview Version 13.0)

[avana2006]

Thank you so much  Darin.K Trusted Enthusiast for the help 🙏 . I solved my issue.

but tell me how you solved this issue.? how you got back the whole block diagram?

[Darin.K]

This particular VI was pretty straightforward to fix, all it took was a little scripting.  Listing the BD objects revealed two, the tab control terminal and a while loop.  Checking the bounds of the While Loop showed the problem.  So I simply used a bit more scripting to set the Content Rect of the While loop to a finite value, and then let Auto Grow snap it to its still-huge proper value.  I would post the VI, but it was disposable and I did not even bother to save it after it did its job.