视频渲染错误-50，无论换任何格式，一直提示这个

已剪辑好视频发送到compressor，无论选择何总格式，工程进行到一半的时候，爆出这个错误，以前也出现过，但是这次死活无法通过，也不知道是什幺原因谁能告诉我该如何操作.使用FCP同样分享失败错误也是-50

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