Unity rewarded video ads are not filled after integrate admob mediation

I've integrated admob mediation a few days ago, but then unity’s ads are no longer filled except banner. Before integration, all ads were working fine.

In admob dashboard, i can see thousands of unity requests are no fill，but other network is normal. I've tried to raise and lower traget ecpm, to optimize the priority of unity, and checked the game id, placements id and others, but still no fill.

Meanwhile, It’s puzzling that I can load unity video ads in test mode

Has anyone encountered this kind of problem?

 

same problem . don't have ads

 

AdMob won't display rewarded ads unless your APK is downloaded from the app store.

I suggest using different service for mediation.. and then add AdMob + unityAds as a mediated network.

 

I am pretty sure that most of users are from google play.
I have even tried ironsource and chartboost before, but there are more problems than admob.

 

What country are your users from? What is your fillrate showing for rewarded ads? If you have low fill rate (but higher than 0%), it may be there are not many bidders targeting the users country, in that case you should look for a network that focus on that country and add it to mediation.

For mediation, I didn't like admob for that as you can't load multiple rewarded ads at a time. So if you cannot get a fill or it's still loading, then the user won't be able to see the ad.