We made many improvements in the latest update, in terms of moving forward to making the page builder a standalone builder – so that it can still be used if you decide to use a theme that isn’t ours in the future.
The full width option of the image never forced full width, but due to the fact that we are trying to function in other themes, this is something that has changed in setup, so while previously it wouldn’t have been forced full width, it now is – so this must have been previously set, but only since the update has it changed output wise on your site.
If you’d like, we can add some code to a child theme which will turn off the full width for all images?
The reason that page won’t update is that one of your plugins is throwing an error upon page save, so it doesn’t get updated.
– Ed