Error when attempting to assign component to Work Definition: ‘The combination ID is not valid.’

Summary:

We've opened an SR for this but thought we'd throw this out here to see if anyone's encountered this issue. There's an error when attempting to assign component to Work Definition: ‘The combination ID 300,000,004,173,956 is not valid.’ This ID seems to be the Supply Locator ID which belongs to the original locator used in the Plant Parameters with a value of ‘A-1-1-1’. That locator has since been disabled and replaced in the Plant Parameters with ‘DEFAULT---’ but somehow the Work Definition UI doesn’t recognize this. The component items and assemblies don't have any WIP supply