Okay. Thanks.
So I investigated the problem a bit. And I get some weird behaviors. Let me explain.
As you propose, I try to clear cache, and try with different browser. The probleme is still the same (I don’t see the description in the other tab, as per my screenshot). Same thing with different computers.
Then, I’ve noticed that after few minute (7-8 min), the description finally appears when I stand on the other tabs.
Then, I’ve noticed that when I resize my browser windows, it refresh the description, and instantly appears.
Do you experiment the same thing ? When you load my blog page, while not connected, and click on one tab (Decouvertes for exemple). Do you see the image of an article, but no description ? And if you resize your browser windows, then does the description appear ?
Thanks for your advice. Tell me if you need more screenshots.