1 files changed, 5 insertions, 0 deletions
diff --git a/src/AS_02_IAB.cpp b/src/AS_02_IAB.cpp
index aa551d9..732ef08 100644
--- a/src/AS_02_IAB.cpp
+++ b/src/AS_02_IAB.cpp
@@ -271,6 +271,11 @@ AS_02::IAB::MXFWriter::Finalize() {
   if (this->m_State == ST_BEGIN) {
     return Kumu::RESULT_INIT;
   }
+  if (this->m_State != ST_RUNNING)
+  {
+    return RESULT_STATE;
+  }
+
 
   Result_t result = RESULT_OK;