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Block diagram removed from VI after build is it possible to get it back?

After a build (I think, unclear what acctually caused the problem) one sub VI was unable to be edited and the "show block diagram" option and the "edit mode" was greyed out. now I'm unable to build the project or edit the VI. Labview 2013 was used. Is there any way to restore anything of the block diagram from the VI? Ill attach the VI. 



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Message 1 of 7

Hi mtro,


when the BD is removed, then it is gone…


To get it back just step back to an older version of that VI using your favorite SVN system.

Or pick up your backup drive and look there for an older version of this VI…

Best regards,

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
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Message 2 of 7

Hi GerdW,


yes that's what I feared, thanks for a fast reply!

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Message 3 of 7

Windows also has an automatic backup which might work. Right click the file in Explorer and select Restore previous versions.

Try to take over the world!
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Message 4 of 7

Have anyone else seen this happen? I use LV2013 with latest patch (but not SP1). I am quite sure it happened during a build of an .exe.

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Message 5 of 7
When you do a build, the block diagrams are removed but the source files should not be touched. How did you specify the build. Did you point to the source code folder as the destination for the build?
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Message 6 of 7

I have created a build in the Build Specifications. The destination is the default ../builds, so not the same as the source code folder.


I do agree that the source file shouldn't be touched why I am very confused on how this happened. I havn't used Save As nor edited the properties of the VI.

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Message 7 of 7