Before i updated i was able to change this but since i cant any suggestions ?
macchanger -r wmaster0
Current MAC: 00:13:49:af:77:f5 (unknown)
ERROR: Can't change MAC: interface up or not permission: Operation not supported
I highlighted the error message for you . I would start with it and figure out what it is telling you, then apply the appropriate actions.
Especially look at the part "interface up" if there is an "up" then that means there must be a "down".