Redirecting standard input, but not output

[Daveeed]

Hi. I want to redirect a VB Console App input to my VB Winform app, but I want that the console's output remains on the default.
So when I press a button in VB WinForm app, writes line to the console app, and it shows it.
The problem is, that the console app remains blank, even though it gets the transmitted message.
WinForm app code:

console_process = New Process
        console_process.StartInfo.FileName = "C:\Users\David\OneDrive\Workspace\Visual Basic\server-console\server-console\bin\Debug\server-console.exe"
        console_process.StartInfo.UseShellExecute = False
        console_process.StartInfo.WorkingDirectory = "C:\Users\David\OneDrive\Workspace\Visual Basic\server-console\server-console\bin\Debug"
        console_process.StartInfo.RedirectStandardInput = True
        console_process.StartInfo.RedirectStandardOutput = False
        console_process.Start()
        'When button is pressed:
        console_process.StandardInput.WriteLine("Test")

ConsoleApp code:

Sub Main()

        While True
            Dim line = Console.ReadLine()
            Console.WriteLine(line)
        End While
    End Sub