peter7779 I've turned those ad types off. They are a new ad type that increases viewability, click-through rate and long-term revenue.
However, an ad should always load where you see that space. To confirm, where ads weren't loading, was it just for that ad type? Or are you still seeing some ads not loading even after I have turned that ad type off? If it's the former, our Tech team would like to work on a proper fix so that they can be turned back on - would you mind if they temporarily turn them back on to troubleshoot at some point? No worries if not.
@szmaragd @priyanshu17 if you haven't already, please open a new thread and we can apply the same fix for your sites is required. As stated above though, turning this feature off will hurt your long-term revenue so we would recommend leaving it enabled unless it is leading to a situation where no ad is loading at all.