Ads Placement Issue on Category and Detail Pages with Custom Ads via functions.php

I am managing a WordPress site and have implemented custom ad placements directly by adding code to my theme’s functions.php file. The logic works by injecting ad units at specific points within the post content and category archives.

However, I am facing inconsistent display issues specifically on category archive pages and single post detail pages. On some category pages, the ads do not appear at all, while on others, they disrupt the layout. On single posts, the ads sometimes load correctly but often push the main content down or break the responsive design.

I’ve confirmed the ad code itself is correct, as it works fine on the homepage. I suspect the problem might be related to hook priorities, conditional tags, or a conflict with how these specific page templates output content. Has anyone encountered similar issues with custom ad injection. see the source for more details