Have you figured it out or do you still have the problem?
I’m also having this exact error when I try to call the rewarded videos:
[MPRewardedVideo loadRewardedVideoAdWithAdUnitID:@“myAdUnitWillBeHere” withMediationSettings:nil];
From the log after calling that:
2017-09-23 16:24:59.856396+0300 MyprojectName[1988:1374622] MOPUB: [Viewability] IAS SDK was found.
2017-09-23 16:24:59.856492+0300 MyprojectName[1988:1374622] MOPUB: Rewarded video manager is loading ad with MoPub
2017-09-23 16:24:59.859361+0300 MyprojectName[1988:1374622] *** -[__NSArrayM enumerateObjectsUsingBlock:]: message sent to deallocated instance 0x1c4a4f3c0
and then the crash
Would like to know what is wrong with my project.