mimalloc: Application using redirection to mimalloc crashes on Windows 11 when opening a file dialog

A minimal program was created to reproduce the issue (look code sniped below). The program opens a file dialog using GetOpenFileName. The crash occurs right after the file dialog displays.

On Windows 10, the program runs successfully both with and without the mimalloc. On Windows 11, the program crashes when the mimalloc allocator is used. Callstack is attached.

Windows 11 Home single language Version 21H2 OS Build 22000.348 Windows Feature Experience Pack 1000.22000.348.0

Shell32.dll ver. 10.0.22000.348 ucrtbase.dll ver. 10.0.22000.1 ucrtbased.dll ver. 10.0.19041.685

Visual Studio 2022 ver. 17.0.2 MSVC ver. 143 x86/x64 14.30.30705 Windows SDK 10.0.19041.0

#include <windows.h>
#include <Commdlg.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    OPENFILENAME ofn;
    char szFile[500];
    ZeroMemory(&ofn, sizeof(ofn));
    ofn.lStructSize = sizeof(ofn);
    ofn.hwndOwner = NULL;
    ofn.lpstrFile = szFile;
    ofn.lpstrFile[0] = '\0';
    ofn.nMaxFile = sizeof(szFile);
    ofn.lpstrFilter = "All\0*.*\0Text\0*.TXT\0";
    ofn.nFilterIndex = 1;
    ofn.lpstrFileTitle = NULL;
    ofn.nMaxFileTitle = 0;
    ofn.lpstrInitialDir = NULL;
    ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
    GetOpenFileName(&ofn);

    MessageBox(NULL, ofn.lpstrFile, "File Name", MB_OK);
    return 0;
}