ID:14641 Outclk port of Clock Buffer Block "<name>" drives inclk port of <text> "<name>", but must not drive an inclk port of a <text>

CAUSE: The outclk port of the specified Clock Control Blocks drives the specified illegal source. Clock Buffer Block outclk port may not drive an inclk port of a Clock Select Block or a Clock Buffer Block

ACTION: Modify the design so that the outclk port of the specified Clock Buffer Block drives an unregistered pin.