'When assigning value to a member function pointer, the assignment tampered with other data

Before the assignment operation, the member variable u works fine, see figure 1

After the assignment operation, the data of the member variable u is tampered, see figure 2

Continuing resize operation will trigger an error: read access violation, see figure 3

The development environment is win10 Visual Studio Community 2022 17.0.4 x64 in Debug mode

Compiling by mingw does not show this problem and the code runs smoothly. I suspect it's a bug for msvc. In addition, this error is very strange, if merged the 4 code files, this error may or may not disappear, which is related to the code order.

Below is the complete code

test.h

#pragma once
class ETEST {
public:
    ETEST() {};
    void add() {};
};

order.h

#pragma once
#include <vector>
class ETEST;

class First {
public:
    First(const char*);
    void (ETEST::* add)();
    std::vector<double> u, v;
};

class Second : public First {
public:
    Second(const char*);
};

first.cpp

#include "test.h"
#include "order.h"

First::First(const char*) :
    add(NULL), u{}, v{} {
};

int main(int argc, char* argv[]) {
    Second chk("");
    return 0;
}

second.cpp

#include "order.h"
#include "test.h"
#include <cstdio>

Second::Second(const char*) :
    First(NULL) {
    add = &ETEST::add;
    u.resize(10, 0.0);
    printf("u resize sucess!\n");
};

Below are my actions:

1.create new solution

2.add code files

3,paste the code

4.Debugging, it throws an exception

(I did not modify any solution properties, all use the default settings)