Unable to publish posts with CKEditor activated

Look at https://www.ads-software.com/support/topic/troubleshooting-wordpress-35-master-list?replies=4 to see if your theme or plugin(s) is listed as problematic and to learn how to check for javascript errors that will impact the WordPress admin area.

If I deactivate the CKEditor plugin it works fine so I am certain that it is the cause.

I have already checked for JS errors, cleared the cache and cookies, tried another browser etc. There are no JS Errors and this is consistent across browsers.

Check https://www.ads-software.com/support/plugin/ckeditor-for-wordpress

Ah, I posted in the wrong place, thanks.