Webstorm not detecting await and response type when nested object

I tryed following case:

const SomeFunction = async () => {
  const myObject = {};
  myObject.test = {
    async myFunc() {
      return [];
    },
  };
  const myArr = await myObject.test.myFunc();
  myArr.filter(a => a);
};

When I have nested object, the type of the function response is not detected (e.g. array) that is why Webstorm show the filter function as unresolved. When I remove the await, the type of the function response is detected, but there is no missing await warning. Is this a bug or can it be fixed somehow?