[Android&iOS] - Ads not showing up due to same correlator id

[gladiuscode]

Hi!

We're experiencing troubles with ads, basically if we instantiate a new banner in the same screen, we see an ad only for the first instance, the others one throw the same error: Request Error: No Ad to show.

Through the official google documentation we discovered that the correlator value plays a key role in displaying ads. If we supply the same value, then the campaign doesn't return the ad since it has already served it.

In the library code we can see that you check the adUnitId and supply a custom correlator value if the adUnitId isn't already registered. If we comment out the check and let it generate a new correlator value, then we always see an ad being shown for every banner instance.

Why do we need this check on the correlator? What happens if we set a new value for each instance?