This application has requested the Runtime to terminate it in an unusual way.(使用版本:QT5.7)?

我用QT写了一个TCP传文件,服务端传文件给客户端,
传小文件(100M以内)没有问题,但是我试着传大文件(1.53G,电影)直接卡死,出现如下图情况

图片说明

根据网上的解决法,是将 mingw492_32\plugins\platforms文件夹,复制到可执行程序同一目录,但是依然无解决。 还有什么办法可以解决的吗,各位大神

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