Hello,
1) Did you make any changes in the parent theme template files except the mentioned changes and the style change? If you need to change something you need to use the child theme, all the changes you made in the parent theme will be lost after theme update, so if you don’t want this then use child theme https://developer.wordpress.org/themes/advanced-topics/child-themes/
2) Log in to your Cloudflare account http://prntscr.com/vwdweo to allow us to flush the CDN cache. In other case, we won’t see our changes.
Our developers will be able to check the issue after the weekend, on Monday – Tuesday.
Regards