videoPlayer在2dx3.11苹果手机下无法显示出来

Creator 3.x
#1

videoPlayer在苹果手机上无法显示出来，完全透明的，但能听到视频声音。在安卓下能正常播放。2dx版本3.11。语言lua。

function cLayerLaunchAnim:onEnter()
print(‘cLayerLaunchAnim:onEnter’)
cViewBase.onEnter(self)

self.videoPlayer = ccexp.VideoPlayer:create() --创建
self.result.lay_content:addChild(self.videoPlayer)
local function onVideoEventCallback(sener, eventType)    --播放完成回调
    if eventType == ccexp.VideoPlayerEvent.COMPLETED then
        print('ccexp.VideoPlayerEvent.COMPLETED')
        -- self:goUpdateLayer()  --播放完成的回调函数，可以修改
        self.videoPlayer:stop()
        self.videoPlayer:runAction(
        cc.Sequence:create(
        cc.CallFunc:create(function() end),
        cc.RemoveSelf:create()))
        dump(os.date("%Y_%m_%d_%H_%M_%S"))
    end
end
self.videoPlayer:setPosition(cc.p(display.width/2, display.height/2))
self.videoPlayer:setAnchorPoint(cc.p(0.5, 0.5))
self.videoPlayer:setContentSize(cc.size(display.width, display.height))
self.videoPlayer:setKeepAspectRatioEnabled(true)
self.videoPlayer:setTouchEnabled(false)
self.videoPlayer:setFullScreenEnabled(true)
self.videoPlayer:setVisible(true)
self.videoPlayer:addEventListener(onVideoEventCallback)

self.videoPlayer:setFileName("launch.mp4")    --资源文件位置
self.videoPlayer:play()
print('videoPlayer:play')
dump(os.date("%Y_%m_%d_%H_%M_%S"))

end

有报这个错：
UIVideoPlayer setFrame 0 0 375 812
cocos2d: QuadCommand: resizing index size from [-1] to [2560]