diff --git a/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp b/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
index 4cd63ea9..3e899233 100644
--- a/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
+++ b/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
@@ -95,7 +95,9 @@ MxResult MxTransitionManager::StartTransition(
 	MxBool p_playMusicInAnim
 )
 {
+#ifdef BETA10
 	assert(m_mode == e_idle);
+#endif
 
 	if (m_mode == e_idle) {
 		if (!p_playMusicInAnim) {