The static VI Reference has the ability to be made strict. A strict and static VI reference shows the icon of the target VI (static part) and a small red star (strict part). This allows a strict, static VI reference to be wired directly into a CBR node.
However, the new async CBR feature does not work with strict, static VI references because it also requires option 0x80 or 0x100 to be wired into the Open VI Reference.
There should be a way to specify an async call inside a strict, static VI reference. That way, an async call can be made by way of a reference returned by a strict, static VI ref and not just with an Open VI Ref.