If you are using cloudflare with the wordpress then you might have some problem related to javascript, it automatically created rocketscript,hence some sync data will not appear..you can easily solve this by doing this..

It is easy to fix.

You must change the following tag: <script type="text/javascript"></script>

add: data-cfasync="false"

example:

<script data-cfasync="false" type="text/javascript></script>