Problem SOLVED!
Starting with CKEditor 4.2.1, all instances are saved, so it works regardless the number of languages used.
As for codemirror, you may want to disable the AdvancedContentFilter in config.js
Code: Select all
config.extraAllowedContent = 'p(*){*}[*]';
config.allowedContent = true;
Be aware if you want to build your own CKEditor version, that for some reason the CKEditor builder may live out some icons.
Enjoy!