I built a personal website and hosted it on Heroku.
However, after recent update and push to Heroku, the website from the custom domain (http://www.kevinportfolio.com) is different from the website from the host domain (https://kevin-portfolio-page.herokuapp.com).
The first one is from host domain and is the correct display.
The second one is from custom domain and does not have a image and styling.
After some troubleshooting, I found out that the stylesheet.css for the custom domain is not updated as it is for the host domain. I assume it has something to do with the custom domain set up and DNS configuration. But I have no clue on how to resolve this issue.
This problem has persisted for more than 48 hours, the time suggested for the DNS to update.