Youtube WkWebView blank space issue

At first, YouTube videos run well. However, when the app enters the background thread, an empty screen appears. Even if the tableview is refreshed, the video screen does not return to normal, and the app must be restarted.

class HomeTableViewCell: UITableViewCell {    var disposeBag = DisposeBag()    var data = PublishRelay<ViewPost>()    var isLoaded = false    func bind() {        data.asDriver() { _ in .never() }            .drive(onNext: { [weak self] currentPost in                guard let self = self else { return }                if self.isLoaded == true {                    self.videoContainerView.cueVideo(byId: currentPost.url, startSeconds: 0, suggestedQuality: .default)                }                else {                    self.videoContainerView.load(withVideoId: currentPost.url)                    self.isLoaded = true                }                ......            } )            .disposed(by: disposeBag)    let videoContainerView: WKYTPlayerView = {            let videoContainerView = WKYTPlayerView()            videoContainerView.translatesAutoresizingMaskIntoConstraints = false            videoContainerView.clipsToBounds = true            videoContainerView.layer.cornerRadius = 15            return videoContainerView    }()}