Error in labels of tinyMCE options

I can’t see the right names in the pop up window of the tinyMCE’s options

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The page in manager loads the file assets/components/tinymce/jscripts/tiny_mce/langs/es.js (I saw it in network console) and I replaced this file’s content for en.js file thinking maybe could be an error into the file but no success.

I know the tinyMCErte could be a solutions but that one doesn’t have a lot of options as tinyMCE… I think. :thinking:

Thanks in advanced.