minor fix to avoid failing checks if the cluster event wasn't bound

Source/VAPlugin/Private/SignalSources/VAAudiofileSignalSource.cpp

@@ -181,6 +181,10 @@ EPlayAction::Type UVAAudiofileSignalSource::GetPlayActionEnum(bool bDirectOnMast
 
 int UVAAudiofileSignalSource::GetPlayAction(bool bDirectOnMaster /*= false*/)
 {
+	if(!bInitialized)
+	{
+		return -1;
+	}
 	//we return the internally stored action in case this is in cluster and not the master
 	//but also update the internally stored data by the one which the master can get from the VAServer
 	//However, using cluster events to sync, so new data might only be available next frame!