C program crash when built (cause is malloc)

Question

I have a school project that I made in C (It's actually college level, but nvm). It is quite big and it works fine....in debug mode. When I build it however, it crashes. I managed to locate the problem and it looks like this(the names are in my native language so I changed them):

    typedef struct
    {
       int a, b;
       another_struct **another_struct_handle;
    } my_struct;

    void some_function(const int n, my_struct **my_struct_handle)
    {
        //some code
        *my_struct_handle=(my_struct *)malloc(n*sizeof(my_struct)); // this is where it crashes
        //some code
    }

    int main()
    {
        my_struct *my_struct_handle;
        some_function(10, &my_struct_handle);
    }

Few notes:

1. I already do exactly the same thing with another_struct in other function and it doesn't crash. This "other function" is called before some_function, of course;
2. This crashes ONLY when i build the project, not on debug;
3. I compile the project with GNU GCC in code::blocks (if it have any importance);
4. The compiler don't give me any warnings or errors anywhere in my code;
5. I am not allowed to use global variables, that's why I need to pass a pointer to a pointer.
   Any ideas? Thanks in advance.