Some posts in blog displayed with shortcodes

Good morning,

We’re using WPML and there is something strange with the theme in our blog :
– In English , all the posts are well displayed
– In French, it is also well displayed, like this :

11 au 19 août 2018
L’enseignement du

– In Chinese, some posts are badly displayed, with the shortcode instead of post content ; like this :

2018年8月11日-19日
[vc_column w…

Do you have an idea ?
Thank for your support !
Phil

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