diff --git a/toonz/sources/toonzqt/fxschematicnode.cpp b/toonz/sources/toonzqt/fxschematicnode.cpp
index 8b21ec0..8651375 100644
--- a/toonz/sources/toonzqt/fxschematicnode.cpp
+++ b/toonz/sources/toonzqt/fxschematicnode.cpp
@@ -1755,7 +1755,8 @@ assert(linkedFx);*/
       TUndoManager::manager()->endBlock();
       emit sceneChanged();
       emit xsheetChanged();
-    }
+    } else
+      SchematicPort::mouseReleaseEvent(me);
   } else
     SchematicPort::mouseReleaseEvent(me);
 }