I have issues with two plugins:
1. Easy Video Suite. This one plays videos in my posts. After the update to WP 3.9 I found out that when this plugin is activated, the Tiny MCE works fine in the WP admin, but it does not show up at all in SP, and on top of that I cannot even write a post or reply. When I deactivate it, everything works again in SP. So as of now I had to deactivate it.
2. J shortcode. This plugin can insert all kinds of shortcode into posts or pages. However after the upgrade to WP 3.9, the editor icons of this plugin now show up below the Tiny MCE icons in SP, whereas before the J shortcode icons only showed up in the admin side of WP, but not in SP. As you explained to me in a previous post in this thread, this is not your responsibility since there might be a coding issue with the plugin and their hooks.
It is confusing that those icons show in SP, but it is not a disaster. At least the forum is working. The really annoying thing is that all the Tiny MCE icons now show up in duplicate which they had done before the upgrade
However the Easy Video Suite plugin is the big issue since this prevents the forum from working. I have had both plugins for a long time, and all this just happened after the upgrade to WP 3.9.