diff --git a/rsContext.cpp b/rsContext.cpp
index 2b3d076..cc39dac 100644
--- a/rsContext.cpp
+++ b/rsContext.cpp
@@ -438,6 +438,7 @@
     } else {
         mVertex.set(pv);
     }
+    mVertex->forceDirty();
 }
 
 void Context::assignName(ObjectBase *obj, const char *name, uint32_t len)