LoadImage stopped working after Windows Update - c++

Question

The updates involved are: KB4532938 and KB4528760
This is the code:
#include "pch.h"
#include <iostream>
#include <Windows.h>
using namespace std;
int main()
{
HMODULE hInst;
HANDLE hImg = NULL;
hInst = LoadLibrary(L"C:\\Users\\asd\\Desktop\\asd\\test.exe");
hImg = LoadImageW(hInst, MAKEINTRESOURCEW(5234), 2, 0, 0, 0);
if (!hImg)
cout << GetLastError() << endl;
cout << hImg;
}
This is the .exe containing the cursor (it's a blank ahk script)
Before the updates:
Output: NOT-null handle and error-code 1813
It works!
After the updates:
Output: NULL handle and error-code 1813
It doesn't work!
The only difference is the installed updates.
The questions are:
Is it a bug?
How is it possible that the resource exists, the name is correct, the format is correct and it fails?
What changed that made it break, was it a bug that made it work in the first place?
How can I report this to Microsoft?

Answer 1

Since it is not easy to clear in comments, I post it as an answer.
I did tests to reproduce this problem and found that it was only related to "KB4528760 update"(you don't need uninstall both of them).
I use EnumResourceTypes, EnumResourceNames to get that the resource does exist:
name = MAKEINTRESOURCE(5234), type = RT_ANICURSOR.
Use FindResource and specify the resource type to RT_ANICURSOR did work.
#include "pch.h"
#include <iostream>
#include <Windows.h>
using namespace std;
int main()
{
HMODULE hInst;
HANDLE hImg = NULL;
hInst = LoadLibrary(L"C:\\Users\\asd\\Desktop\\asd\\test.exe");
HRSRC hResInfo = FindResource(hInst, MAKEINTRESOURCE(5234), RT_ANICURSOR);
hImg = LoadResource(hInst, hResInfo);
if (!hImg)
cout << GetLastError() << endl;
cout << hImg;
}