When sharing this post >> https://www.greenpeace.org/belgium/fr/blog/7050/nos-navires-emblematiques-mais-surtout-utiles/ the Open graph is not picked, this may be an issue related to multiulingual site. Weird charachjters are opiucked up instead (see snapshot)

Please check directly with @qquenting and make sure Open graphs arew picked up in the right language version.

This has been reported by Belgium