Index: draw_csect.c
===================================================================
--- draw_csect.c	(revision 29681)
+++ draw_csect.c	(revision 29682)
@@ -769,11 +769,11 @@
 			}
 			else if (drag_delgrp) {
 				if (gactive >= 0) {
-					pcb_layergrp_del(PCB, gactive, 1);
+					pcb_layergrp_del(PCB, gactive, 1, 1);
 					if (pcb_layergrp_flags(PCB, gactive) & PCB_LYT_SUBSTRATE)
-						pcb_layergrp_del(PCB, gactive, 1);
+						pcb_layergrp_del(PCB, gactive, 1, 1);
 					else if (pcb_layergrp_flags(PCB, gactive-1) & PCB_LYT_SUBSTRATE)
-						pcb_layergrp_del(PCB, gactive-1, 1);
+						pcb_layergrp_del(PCB, gactive-1, 1, 1);
 				}
 				drag_delgrp = 0;
 				gactive = -1;