Hey there,
There is a huge difference between my actual header and the way it looks when I edit it.
It makes me lose a lot of time.
Can you have a look ?
URL is http://isatis.io

Thanks by advance for your support !
PS. This new forum is pretty amazing…
This is how it looks in real life.

Hello There,
To assist you better with this issue, would you mind providing us the url of your site with login credentials so we can take a closer look? This is to ensure that we can provide you with a tailored answer to your situation. Once you have provided us with your URL, we will be happy to assist you with everything.
To do this, you can create a secure note with the following info:
– Link to your site
– WordPress Admin username / password
Thank you.
Sure !
I leave it in a secure note for you
Hi there,
It’s due to Autoptimize plugin, I turned off Also optimize for logged in users?from your Autoptimize setting and it’s now working 
Cheers!
Great !
Thank you for your help !
You’re welcome! 