I hope somebody here can clarify this question.
I made a template for an original design of a single post (using Elementor Pro and Hello Theme). This worked well. After a year of use of the website and creation of many pages, I wanted to make small changes to the layout. When I made these changes to the layout on my template, all new post conform to it, but all existing older content remains with their original layout.
I cannot find a way to automatically update all this old content. Am I wasting my time looking for a solution? Is this the way templates work, just as a way to style new content but not existing one? I don’t find anyone else asking a similar question here so maybe I misunderstand the use of templates?
All the best.