设置 启动竖屏的情况，通过调用 SetDeviceOrientation,动态转横屏会出现这样的效果。

设置 启动横屏的情况，通过调用 SetDeviceOrientation,动态转竖屏会出现这样的效果。

    public void SetLandscapeMode()
    {
        #if UNITY_WEBGL && !UNITY_EDITOR
        // 微信小游戏环境
        SetDeviceOrientationOption option = new SetDeviceOrientationOption
        {
            value = "landscape",
            success = (res) =>
            {
            },
            fail = (res) =>
            {
            }
        };
        WX.SetDeviceOrientation(option);
        #else
        Screen.orientation = ScreenOrientation.LandscapeLeft;
        #endif
        mainCanvasScaler.referenceResolution = new Vector2(1280, 720);
        mainCanvasScaler.matchWidthOrHeight = 1;
    }


    public void SetPortraitMode()
    {
        #if UNITY_WEBGL && !UNITY_EDITOR
        // 微信小游戏环境
        SetDeviceOrientationOption option = new SetDeviceOrientationOption
        {
            value = "portrait",
            success = (res) =>
            {
            },
            fail = (res) =>
            {
            }
        };
        WX.SetDeviceOrientation(option);
        #else
        Screen.orientation = ScreenOrientation.Portrait;
        #endif
        mainCanvasScaler.referenceResolution = new Vector2(720, 1280);
        mainCanvasScaler.matchWidthOrHeight = 0;
    }

以上的具体代码片段，是我的调用有问题还是微信小游戏unity插件的bug？