Is the changing from one path cost method to another disruptive to the STP operation?

Hello Sandeep, do you know if this CDP issue extends to the WLC to switch connection also? We have just upgraded a 5508 to 8.0.133.0 ( no AP's connected as yet) and can no longer see the WLC from the switch (WS-C6513 Software, Version NmpSW: 8.3(7))...