Sorry about you getting the run around. I know I hate it when it happens to me. It’s strange. I based the referral on this:
https://jetpack.com/features/design/themes/showcase/calyx/
www.remarpro.com does not have a Calyx theme, it is actually a wordpress.com theme. The only way to use it on a .org site AFAIK is through JetPack. All I know is we cannot help you with theme specifics here at .org because we cannot access the source code and have no direct experience with that theme.
I can offer general advice based on what I know about most WP themes. It may not apply specifically to Calyx, but maybe it’ll help you some. You likely need to get your About page to use the same template that is used for the front page. There are plugins that will help you find out what template is used, such as Template Debugger.
There may be a simpler theme dependent way to get one template used elsewhere, but one way is to make a copy of the template file and rename according to template hierarchy.
When you alter a theme’s template structure, it’s best to keep the altered or new templates in a child theme. If you do not, your customized templates will be removed during a theme update.