Skip Button doesn't work for google pre roll on iOS

Question

On iOS app with GoogleInteractiveMediaAds integrated "Skip Ad" button doesn't work. Meanwhile manual call adsManager.skip() works perfectly. The button itself reacts to the tuches because it changes bounds and seems highlighted. Unfortunately, I haven't found anything according to handle tap manually, so maybe somebody has already been in this situation and could help with it.

        guard
            let adInformation = delegate?.latestAdInformation(), let url = adInformation.urlForIMA,
            let adContainer = delegate?.videoAdDisplayContainerView()
            else { return }

        switch adInformation.adsType {
        case .interstitials, .none:
            self.play(ignoreAds: true)
            return
        case .prerolls, .all:
            fallthrough
        @unknown default:
            break
        }

        let adDisplayContainer = IMAAdDisplayContainer(adContainer: adContainer, companionSlots: nil)

        let request = IMAAdsRequest(
            adTagUrl: url,
            adDisplayContainer: adDisplayContainer,
            contentPlayhead: contentPlayhead,
            userContext: nil)

        adsLoader.requestAds(with: request)

        func adsLoader(_ loader: IMAAdsLoader!, adsLoadedWith adsLoadedData: IMAAdsLoadedData!) {
        // Grab the instance of the IMAAdsManager and set ourselves as the delegate
        adsManager = adsLoadedData.adsManager
        adsManager?.delegate = self

        // Create ads rendering settings and tell the SDK to use the in-app browser.
        let adsRenderingSettings = IMAAdsRenderingSettings()
        if let vc = delegate?.adWebControllerPreferredOpenViewController() {
            adsRenderingSettings.webOpenerPresentingController = vc
        }

        // Initialize the ads manager.
        adsManager?.initialize(with: adsRenderingSettings)
    }

    func adsLoader(_ loader: IMAAdsLoader!, failedWith adErrorData: IMAAdLoadingErrorData!) {
        self.play(ignoreAds: true)
    }

    func adsManager(_ adsManager: IMAAdsManager!, didReceive event: IMAAdEvent!) {
        if event.type == IMAAdEventType.LOADED {
            adsManager.start()
        }
    }

    func adsManager(_ adsManager: IMAAdsManager!, didReceive error: IMAAdError!) {
        self.play(ignoreAds: true)
    }

    func adsManagerDidRequestContentPause(_ adsManager: IMAAdsManager!) {
        self.pause(ignoreAds: true)
    }

    func adsManagerDidRequestContentResume(_ adsManager: IMAAdsManager!) {
        self.play(ignoreAds: true)
    }