Thank you both for your replies. So I’ve been doing some tests in both Chrome v 32.0.1700.77 (which is my default browser) and Firefox v 26. In both of them the TinyMCE script is loading without any issues.
First let’s try something easy, just deactivate and delete the plugin, then just look for it through the Dashboard > Plugins panel and install it again, check if the issue is solved. If not, could you please check your browser’s debuggers and see if there are warnings or errors being displayed?
There’s also another trick you could try to check if the form is there, the TinyMCE button loads this file: “nlposts_shortcode_form.php”, try loading the form and see if it is there:
// Replace example.com with your own domain address
https://example.com/wp-content/plugins/network-latest-posts/js/nlposts_shortcode_form.php
I’m wondering if this is not an incompatibility issue with another plugin or a jQuery error.
As I’m currently working on the next version, I installed version 3.5.4 available in the WordPress Directory just to be sure it works as expected.
I’m looking forward to your feedback.