For several months now we have been having issues with a particular ad placement by the ad plugin in which it frequently (but not always) overlapps content because it renders in a different size than what it is configured for. I’m wondering if anyone has had this experience as well?
The location/placement is the Topic Above Suggested and it only happens on mobile. Moreover, it only happens if the page is initially loaded further up (ie, ad not visible/displayed/rendered yet) and when scrolled down until it becomes visible: that’s when it overlaps the content. If the page loads already in (or near) the position where the placement is rendered, then it seems to always render correctly.
Example of the overlap
That seems to be a 300x250 rendering on what is meant to be a 320x50 placement, hence the overlap.
In our case, this is dfp_mobile_topic_above_suggested_code, that is, DFP and the banner is from AdSense. We have dedicated Ad Units on DFP for each placement and for each platform (mobile/desktop) and they are configured similarly, and with the intended fixed size (not dynamic). AdSense is not configured to use AutoAds. Our Discourse theme is rather simple, so I doubt this is being caused by it.
Has anyone seen reports of something ad overlaps in the wild?
Any idea what may be causing this, given that it seems to happen only when the rendering is triggered by scrolling to it?