V6 SR2 RC2 doesn't find Perspective view (via button macro)

unhandled

#1

If I punch the button associated with this macro:

Nothing happens… I get the follwing command line messages:

Name of viewport to maximize: Perspective
Unable to find viewport named Perspective

Obviously, from the image, the Perspective viewport exists.
Worked previously as far as I know. Works in V5.
?
–Mitch