Interstitial (display) ads show up even if disabled in the dashboard

Hey. Since yesterday we noticed that interstitials (display) ads are being shown for our game even if they are disabled in the placement settings of the dashboard.

Our ad placement settings only allow to show rewarded and non-rewarded video ads, but it seems that when video ads are not available, unity will fallback to interstitials.

 

I was wrong. It was not display ads, it was playable ads, and playable ads never trigger success state, the only trigger skipped state.