diff --git a/src/app/component/infra/display/map.component.ts b/src/app/component/infra/display/map.component.ts
index bdac83b..9dba1f9 100644
--- a/src/app/component/infra/display/map.component.ts
+++ b/src/app/component/infra/display/map.component.ts
@@ -1033,8 +1033,8 @@ export class MapComponent implements OnInit, AfterContentInit, OnDestroy {
       } else {
         if (null !== unknownServiceNode) {
           const { index: linkIdx } = this.getLink(hostNode, unknownServiceNode);
-          delete this.links[linkIdx];
-          delete this.nodes[unknownServiceNodeIdx];
+          // delete this.links[linkIdx];
+          // delete this.nodes[unknownServiceNodeIdx];
         }
         newNode = true;
       }
diff --git a/src/assets/image/node/icon/icon_mediaserver.svg b/src/assets/image/node/icon/icon_media_server.svg
similarity index 100%
rename from src/assets/image/node/icon/icon_mediaserver.svg
rename to src/assets/image/node/icon/icon_media_server.svg
diff --git a/src/assets/image/node/icon/icon_multiscreen.svg b/src/assets/image/node/icon/icon_multi_screen.svg
similarity index 100%
rename from src/assets/image/node/icon/icon_multiscreen.svg
rename to src/assets/image/node/icon/icon_multi_screen.svg