Pb 2019( R3 build 2703).exe never make exit when running with this cscript code example

In the following code, The line: "var eof = exe.StdOut.AtEndOfStream;" hangs, and the PB program does not exit.

Please create file b.wsf with the following content, and run it by: cscript b.wsf

// As a result, the line: "var eof = exe.StdOut.AtEndOfStream;" hangs.

// And the program test2019.exe (which is an empty PB program built and run in PB2019

// environment) also hangs and never exits.

var shell = new ActiveXObject("WScript.Shell");

var exe = shell.Exec("test2019.exe 2>&1");

var eof = exe.StdOut.AtEndOfStream;

WScript.StdOut.Write("hi…"); // this line is never executed since the previous line hangs.

</script>

</job>

Resolved Pb 2019( R3 build 2703).exe never make exit when running with this cscript code example