I’m having the exact same problem. I turned off each of my plug-ins to figure out which one was causing my text editor to break. After turning off the “Comprehensive Google Map Plugin,” my text editor worked fine. Then after turning “Comprehensive Google Map Plugin” back on, it promptly broke again.
This plug-in is not compatible with WP 4.0 and breaks the text editor.
The Visual Editor still works fine, but the toolbars on the text editor along with Upload Media (and other buttons) do not function when this plug-in is enabled.
Quote from the developer “Please note: Although I try my best to release a bug-free code, one or two may slip through. It would be so cool and I would really appreciate it if you would report any bugs to me first at http://wordpress.org/plugins/comprehensive-google-map-plugin/, before reporting the plugin to be broken. I am quick to respond. Thanks!”
VERRY QUICK TO RESPOND !!!!
I just delete the plugin and take leaflet marker, had to Change more then 150 Posts!
