Having trouble to display the twitter timelines using Jetpack shortcode

This seems to work in my tests. Could you send me a link to a post or page where you’ve inserted that shortcode?

Thanks!

(remove)

Ah, wait, I can’t activate Jetpack on our test environnement, I’ll try to find a live post.

Ok here is a temporary live post :
https://www.rue89strasbourg.com/eric-elkouby-demission-adjoint-109189

What is inserted below “Tests” :

[twitter-timeline username=francepierre]

[twitter-timeline id=356404806660800512]

Could you try to add quotes around the username, like so?

[twitter-timeline username="francepierre"]

Let me know how it goes.