I have configured ads to appear in the topic list after every five topics, but they are not displaying. This ad type has been active on my site for a long time and continues to work within topics after a set number of posts.

The ad placement appears to be set up correctly, as I can see blank spaces where the ads should appear—after the 5th topic, the 10th, and so on—but no actual ads are being displayed. Interestingly, if I change the setting to show ads after every two or eight topics, the blank spaces adjust accordingly, yet the ads remain missing.

I have verified that the code is correct, and the same code is functioning elsewhere on the site.

Any help would be greatly appreciated.

You would need to check with your ad provider as the software is outputting the script you're providing on page in the correct spots. It looks like there is a Javascript error:

Uncaught TagError: adsbygoogle.push() error: Fluid responsive ads must be at least 250px wide: availableWidth=0

You would need to work with them to resolve that.

@Demonland31 Is the issue happening on desktop and mobile or is it limited to when using a mobile device? Are you in v5? cloud hosted?

I have a massive issue with many adsense ads not showing in mobile devices. This is especially a problem when trying to use auto ads.