After upgrading to WP 3.9 and TinyMCE Advanced 4.0, I noticed that when editing the article automatically removes me onmouseover and onmouseout variables of the images and when it is inserted and removed them anyway, and sets one image.
It is a bug or something changed? how to set the WP to now when you hover your mouse on the image display to another?
Ps2. Sorry for my english ;p.