Now working!
Although I had deactivated Tiny MCE to no avail I deactivated all plugins and re-reinstalled them one by one. Hey presto it all seems to be working. Even Tiny MCE!
Since updating to version 4.2.3.1 other users cannot use visual editor.
The slider has stopped working on the plugin.
I have checked the settings. The auto slide option is checked and I have entered 5 seconds in the ‘Delay between two tweets’.
Can you help please?