Index: SystemComm.c
===================================================================
diff -u -rca1d590217b1bfd14f0e0682f88e04de076ff199 -rece40056675b8e5b58b399195e27352458251e91
--- SystemComm.c	(.../SystemComm.c)	(revision ca1d590217b1bfd14f0e0682f88e04de076ff199)
+++ SystemComm.c	(.../SystemComm.c)	(revision ece40056675b8e5b58b399195e27352458251e91)
@@ -709,7 +709,8 @@
 #ifdef _DD_
             //TODO : validate code changes
             // Remove message pending ACK from list
-            if ( ( getU32OverrideValue( &pendingACKOverride ) != PENDING_ACK_LIST_OVERRIDE_TD_CHANNEL ) || ( pendingAckList[ i ].channel != COMM_BUFFER_OUT_CAN_DD_2_TD ) )
+            if ( ( ( getU32OverrideValue( &pendingACKOverride ) != PENDING_ACK_LIST_OVERRIDE_TD_CHANNEL ) || ( pendingAckList[ i ].channel != COMM_BUFFER_OUT_CAN_DD_2_TD ) ) &&
+                 ( ( getU32OverrideValue( &pendingACKOverride ) != PENDING_ACK_LIST_OVERRIDE_TD_CHANNEL ) || ( pendingAckList[ i ].channel != COMM_BUFFER_OUT_CAN_DD_2_UI ) ) )
 #endif
             {
                 pendingAckList[ i ].used = FALSE;