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Before update the system version to iOS 15, it all works well. error url: https://game.ivydad.com.cn/chinese-wordL2/?nodeId=206962&env=production&source=ios&memId=2470906&color=65d1a7&hide_next_btn=0&language=chinese&autoPlay=1 Using Safiri, it couldn't show game content any more. Watch carefully, game shows at the top of the page and seems showing as a line. But after I rotate the iPhone device and rotate back, it turns OK. The operation video url: https://game.ivydad.com/temp/normal_video.mp4 We have tried to redispatch event "resize" or modify the canvas style such as left top, error still exists. How can we solve this? Begger for helps.