Visual Tab Only Showing Text Tab

I updated yesterday to wordpress 3.9 and thats when it stopped working.

If the widget in your widgets list (not plugins list) is still called Black Studio TinyMCE, I think you are running an outdated version.
Please ensure to update the plugin to the latest version (actually 1.3.3). If your WP doesn’t report the update available, try to delete and reinstall the plugin.

The plugin for TinyMCE isn’t in the list of plugins I have installed.

That’s pretty weird. Maybe you have an old copy of the plugin included in your theme or in another plugin. Try to search for it in your WP install. Which theme are you using?

789 Theme.

I didn’t find it in the install either. Yeah I agree this is really weird. If I install the actual plugin will it rewrite/destroy the stuff I already have implemented into the site with the current Tiny install?

The 789 Theme is commercial and actually I don’t have a license for it, but looking on its themeforest page they say they include Black Studio TinyMCE Widget v1.1.0, which is a very outdated version. I’d suggest you to contact the theme developer about this.
Anyway, if you try to install the latest version from WP repository, widget data won’t be deleted/overwritten, but I fear that the 2 versions will conflict on function names, and it can crash your WP admin (if that happens just delete or rename the plugin’s folder from FTP or from your hosting panel file manager).

Hey I tried doing what you said and I got this error code.

Cannot redeclare class WP_Widget_Black_Studio_TinyMCE in /home/content/49/2630349/html/wp-content/plugins/black-studio-tinymce-widget/black-studio-tinymce-widget.php on line 102

I tried installing the updated version of the TinyMCE plugin.

As expected there’s a conflict between the two versions of the plugin.
You should disable the old one included in your theme by locating the point in the theme source code and removing it from there.
I’d recommend to contact the theme developers and tell them that this is really a bad way to include plugins inside a theme.
The best way to do such a thing is to use the TGM Plugin Activation library.

I have sent off an email to them. I don’t think I will hear back. I don’t have high hopes. I really appreciate your help though. Thanks for the awesome plugin!

Were you able to fix this issue? If you want me to take a look you may send your WP and FTP credential using our contact form, or send a zipped copy of your theme.

I was not able to fix this, I contacted the theme auther. Their exact reply was “We do not do custom sites, this will be included in the next update but we do not have another update in the pipeline” So basically they are abandoning the theme for now. I will email you the ftp and wp stuff. Thanks so much for your help, I really appreciate it.

Problem fixed. For anyone having the same issue the fix consists in removing/commenting the following line form the 789 Theme’s functions.php file:

require_once (TEMPLATEPATH. '/functions/custom-widgets/black-studio-tinymce-widget/black-studio-tinymce-widget.php');