Interstitials Not Displaying, But Impressions Being Counted

I can't get the interstitials to show up in my Unity3d Android game. I have an Android game in Unity (v3.3.4). I have added Facebook functionality using the Facebook SDK (v5.0.3),

Solution 1:

Had a very similar problem myself- contacted their support and as I recall they said the problem is that their Unity plugin seems to be receiving ads intended for the newer version of their SDK that hasn't been implemented for Unity- so the problem is on their side. As a workaround, they provided me with a .jar file that accepts the ads it's receiving. Go ahead and E-mail them about it and they should give you the file without too much of a wait. Hope this helps!