Index: includes/topics/functions.php
===================================================================
--- includes/topics/functions.php	(revision 4781)
+++ includes/topics/functions.php	(working copy)
@@ -291,6 +291,9 @@
 
 	// Insert topic
 	$topic_id = wp_insert_post( $topic_data );
+	
+	/* add post meta _bbp_forum_id otherwise sticky is not set when topic is first created */ 
+	bbp_update_topic_forum_id( $topic_id, $forum_id );
 
 	/** No Errors *************************************************************/