Meta Box

Hi, thanks!
Now the metabox save their data and the "exclude" option work well, but using the "include" option (like the code above), the Metabox remains visible to all user_roles.

The backend page: https://tppr.me/mPGHs

Hi Anh, and thanks Jackky for your help!
I added the WPML Media plugin, but the field with "_thumbnail_id" is not yet displayed in the translated post. Any other suggestions?

Thanks,
D