ID:169320 LVDS Direct Loopback cannot be supported from differential receiver <name> at pad group <number> to differential transmitter <name> at pad group <number>

CAUSE: You assigned the specified differential receiver and transmitter to pin locations of the specified pad groups. LVDS Direct Loopback can only be supported between receiver and transmitter within the same pad group.

ACTION: Assign the specified pins to the same pad group or remove the LVDS Direct Loopback assignment to the pins.