Just talked with the server admin and the dev server was doing too much cache. It is solved at this moment, but I’ll keep in mind what you have suggested.
I have discovered when “Enable NextPage (PageBreak) Button. Adds a button to “break” posts into multiple pages. [Click for Help] ” The right column moves to the end of the page.
I think it’s a theme bug
hmmmm I’ll try to do that. I’m not a programer. Still don’t get it how it changed just for migrating from 1 server to another.
But thanks for your help