Set USE_YOUTUBE_OBJECT_API to False since YouTube has fixed the issue.

lms/envs/common.py

@@ -82,8 +82,8 @@ MITX_FEATURES = {
     'AUTH_USE_MIT_CERTIFICATES': False,
     'AUTH_USE_OPENID_PROVIDER': False,
 
-    # When the YouTube iframe API breaks
-    'USE_YOUTUBE_OBJECT_API': True,
+    # Flip to True when the YouTube iframe API breaks (again)
+    'USE_YOUTUBE_OBJECT_API': False,
 }
 
 # Used for A/B testing