In cases when there's already a component in the selection that is

reduced to nothing, allow moving the selection

diylc/diylc-core/src/org/diylc/presenter/Presenter.java

@@ -1359,7 +1359,17 @@ public class Presenter implements IPlugInPort {
 
     // Validate if moving can be done.
     for (Map.Entry<IDIYComponent<?>, Set<Integer>> entry : controlPointMap.entrySet()) {
+      // check if a component already has overlapping points because of a previous error, in that case skip it
+      boolean skip = false;
       IDIYComponent<?> component = entry.getKey();
+      for (int i = 0; i < component.getControlPointCount() - 1 && !skip; i++)
+        for (int j = i + 1; j < component.getControlPointCount() && !skip; j++)
+          if (component.getControlPoint(i).equals(component.getControlPoint(j)))
+            skip = true;
+      
+      if (skip)
+        continue;
+            
       Point2D[] controlPoints = new Point2D[component.getControlPointCount()];
       for (int index = 0; index < component.getControlPointCount(); index++) {
         Point2D p = component.getControlPoint(index);

diylc/diylc-core/src/org/diylc/presenter/update.xml

@@ -3302,6 +3302,10 @@
 					<changeType>IMPROVEMENT</changeType>
 					<description>Do not allow for components like traces, jumpers and wires to be reduced to nothing by dragging connected components</description>
 				</org.diylc.appframework.update.Change>
+				<org.diylc.appframework.update.Change>
+					<changeType>IMPROVEMENT</changeType>
+					<description>In cases when there's already a component in the selection that is reduced to nothing, allow moving the selection</description>
+				</org.diylc.appframework.update.Change>				
 			</changes>
 			<url>https://github.com/bancika/diy-layout-creator/releases</url>
 		</org.diylc.appframework.update.Version>