E0521 09:37:15.386984 Thread-3 _internal.py:88] Error on request:
Traceback (most recent call last):
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/werkzeug/serving.py", line 270, in run_wsgi
    execute(self.server.app)
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/werkzeug/serving.py", line 258, in execute
    application_iter = app(environ, start_response)
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/tensorboard/backend/application.py", line 272, in __call__
    return self.data_applications[clean_path](environ, start_response)
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/werkzeug/wrappers.py", line 308, in application
    resp = f(*args[:-2] + (request,))
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/tensorboard/plugins/scalar/scalars_plugin.py", line 185, in tags_route
    index = self.index_impl()
  File "/private/home/cinjon/anaconda3/lib/python3.6/site-packages/tensorboard/plugins/scalar/scalars_plugin.py", line 117, in index_impl
    for (tag, content) in six.iteritems(tag_to_content):
RuntimeError: dictionary changed size during iteration