async/await stacks sometimes work

gistfile1.txt

async function bottom() {
  console.log('in bottom');
  const stack = new Error().stack;
  console.log('stack:', '<<<' + stack + '>>>');
  console.log(typeof stack);
  console.trace('stack trace');
}

async function middle() {
  await bottom();
}

async function topmost() {
  await middle();
}

topmost();