twice09

They changed the “container” logic with the new update but you can still return with the old structure going into the setting of Elementor (Experiments precisly) and deactivate all the “Flexbox” option. After doing this action, the section and the column will return as a default structure for your future content 🙂

I think this is exactly what happened to me (i wrote an issue right below your). Yeah the new container was mandatory i think from the 3.16, then, as you, i updated all my section with this new Container style. After that i updated to 3.16.2 and the mandatory option have been removed, so all my Container flexbox disapperead. I had to copy from my staging all the section that i had previously changed. From now i think i will be with this 3.16.2 and wait a bit before update again.