call GetConsoleScreenBufferInfoEx trashes my stack return address [duplicate]

Question

I am using latest Visual Studio 2022 Preview to learn X64 assembly language. My assembler is the builtin MASM64. The application type is a simple Windows 11 X64 console. the following code causes an exception:

; WinAPI libraries.
INCLUDELIB kernel32.lib ; Console.

; WinAPI type definitions.
    HANDLE TYPEDEF QWORD
    ULONG  TYPEDEF DWORD

.CONST

    MyInvalidValue EQU -1 ; Error detection.

.DATA
    ALIGN 4
    CONSOLE_SCREEN_BUFFER_INFOEX STRUCT
        ALIGN 4
        cbSize               ULONG SIZEOF CONSOLE_SCREEN_BUFFER_INFOEX
        ALIGN 2
        dwSizeX              WORD MyInvalidValue
        dwSizeY              WORD MyInvalidValue
        dwCursorPositionX    WORD MyInvalidValue
        dwCursorPositionY    WORD MyInvalidValue
        wAttributes          WORD MyInvalidValue
        srWindowL            WORD MyInvalidValue
        srWindowT            WORD MyInvalidValue
        srWindowR            WORD MyInvalidValue
        srWindowB            WORD MyInvalidValue
        dwMaximumWindowSizeX WORD MyInvalidValue
        dwMaximumWindowSizeY WORD MyInvalidValue
        wPopupAttributes     WORD MyInvalidValue
        ALIGN 4
        bFullscreenSupported DWORD MyInvalidValue
        COLORREF             DWORD 16 DUP (MyInvalidValue)
    CONSOLE_SCREEN_BUFFER_INFOEX ENDS
    MyBufferS CONSOLE_SCREEN_BUFFER_INFOEX {}

    ALIGN 8
    MyStdOutH             HANDLE MyInvalidValue

.CODE

; External WinAPI procedures.
EXTERNDEF ExitProcess                 :PROC
EXTERNDEF GetStdHandle                :PROC
EXTERNDEF GetConsoleScreenBufferInfoEx:PROC

main PROC
    sub rsp, 4 * 8 ; Shadow stack for 4 parameters.

    call MyGetConsoleHandlesProcedure
    call MySetConsoleSizeProcedure

    add rsp, 5 * 8 ; Restores stack and alignment.
    xor ecx, ecx ; Exits with no error code.
    call ExitProcess
main ENDP

MyGetConsoleHandlesProcedure PROC ; Gets console handle.
    mov ecx, 0FFFFFFF5h ; STD_OUTPUT_HANDLE nStdHandle.
    call GetStdHandle
    mov MyStdOutH, rax ; Saves handle.
    ret
MyGetConsoleHandlesProcedure ENDP

MySetConsoleSizeProcedure PROC ; Sets size.
    mov rcx, MyStdOutH ; hConsoleOutput.
    lea rdx, MyBufferS ; lpConsoleScreenBufferInfoEx.
    call GetConsoleScreenBufferInfoEx 
    ret
MySetConsoleSizeProcedure ENDP

END

The specific line that causes the Access violation exception is

     call GetConsoleScreenBufferInfoEx 

After carefull debugging I found out the reason. This call overwrites the stack return address so the ret instructions pops a wrong return address from the stack. This is a minimum viable program to show the bug. Obviously the full program has full error detection after every call and there are no errors... Here is a screenshot of the stack before this call: stack before the call As can be seen in the registers view, the stack is properly aligned before the call. And here is a screenshot of the stack after this call: stack after the call As can be seen, the return address was overwritten with all zeros! What am I doing wrong?