Override VIs Not Saving Correctly in LabVIEW 2020

Updated Apr 28, 2021

Reported In


  • LabVIEW 2020

Issue Details

I'm developing a LabVIEW Object-Oriented Programming (OOP) application in LabVIEW 2020 that uses override VIs, and noticed that these VIs aren't saving correctly even when saving my project using the Save All functionality - changes that I make to the VIs aren't present upon reopening the project. The same program saves correctly in LabVIEW 2019 and other previous versions.


This behavior is a bug in the initial release of LabVIEW 2020, and has been fixed in the f1 patch. If you are able to update your version of LabVIEW, doing so will resolve the saving issue with override VIs. If you are unable to update LabVIEW, you can still save your override VIs, but you will need to manually save each VI after performing an edit using the Save command in the project toolbar, or "Ctrl+S." Choosing Save All or using "Ctrl+Shift+S" will not save your VIs correctly.