Why does the IDE say that the function is supposedly not defined?

Can you tell me why the IDE indicates that the "func" function is not defined, although I have defined it below and the code is compiled without errors in principle? This happens only with the prototype of a function that returns a pointer to an array in this style.

#include <iostream>

auto func(int value) -> int(*)[10]; // Function definition for "func" not found

int main()
{
  // some code

  return 0;
}

auto func(int value) -> int(*)[10]
{
  return nullptr;
}

There is no such indicator if you describe the prototype in the old style as int(*func(int value))[10]

also, everything is normal if you write like this:

#include <iostream>

using arr_ptr = int(*)[10];

auto func(int value) -> arr_ptr;

int main()
{
  // some code

  return 0;
}

auto func(int value) -> arr_ptr
{
  return nullptr;
}

I am writing a number in Visual Studio 2022. 20 standard is specified in the settings

The code compiles but I expect there won't be any error indicators...