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Each LabVIEW class may own a VI with the same name as a VI owned by a parent or ancestor class. The dynamic dispatch subVI calls one of these VIs, and LabVIEW chooses which subVI to call when the subVI actually executes. If any of the VIs are broken, then this subVI also is broken.

To correct this error, examine the Error list window of the member VIs and correct any errors you find in each VI.