Especially with ad networks and other codes that come from external sources, it is possible that the code was properly injected by Advanced Ads, but the ad network returns an empty result.
There are two options here. If either of this helps you find the ad code on your site then please contact the ad network about a solution or ask them to contact us to troubleshoot together.
Inspect code sent to your browser
This method might not work when you enabled cache-busting in Advanced Ads Pro. Jump to the next step below for a solution.
Just open the source code window of your browser as described here and use the search function to look for some of the strings you entered in the ad code. E.g., for AdSense look for adsbygoogle.
If you find the ad code then the issue is likely with the ad network and not Advanced Ads.
Inspect code generated within your browser
Checking that is not that hard. Just click on Ad Health > highlight ads in the Toolbar in the frontend of your website. It should highlight the injected ad placements. Go to the empty placements and right click in them. Depending on your browser, there should be an option called “Inspect” or similar. It should lead you to the generated code on your site. If it looks similar to the code you added then the issue is likely related to the ad network.
