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An input parameter is invalid when opening a VI

If I start LabVIEW 2012 SP1 f5, and open a given VI, I get the dreaded "An input parameter is invalid..." with a subwarning of "An error occurred loading VI 'NI__ALLPro.lvlib:Unique Number and Multiplicity (DBL).vi". LabVIEW load error code 17: Could not load VI's link information.

 

Clicking OK the file loads fine. i.e. not broken, no further errors, just some warnings about a dependency path that changed for one of our .ctl files.

 

If I open another VI that contains the VI above, no error whatsoever...

 

This is not when running any VI, just opening a VI from the file system with LV development.

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What if you would just replace the VI with a fresh copy from the palettes?
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