I've built a new iOS test build of my game and experienced a strange issue: I can't close any admob interstitial. There is a close button, but it doesn't work. Moreover: any other interactive elements of a interstitial doesn't work either, it is no possible to tap the ad, to tap Get button and so on. All the interstitial is not responding. The only way to pass it through is use a home button.
I've checked my published games (not the test builds, current versions from App Store): the situation is the same. It is impossible to interact with interstitials. On Android all works fine (at least now).
What is happening?