enzyme: mount Suspense and throw promise - Enzyme Internal Error: unknown node with tag 2

Current behavior

Getting error Enzyme Internal Error: unknown node with tag 2

from mounting Suspense component with child component that throws promise:

import React, { Suspense } from "react";

const Message = props => <div>Hello Enzyme!</div>
const Loading = props => <div>loading...</div>
const Thrower = props => {
  throw new Promise(resolve => {
    setTimeout(resolve, 1000);
  });
};
describe("integration with Suspense component", () => {
  test("should render Message component", () => {
    const wrapper = mount(
      <Suspense fallback={<Loading />}>
        <Message />
      </Suspense>
    );

    expect(wrapper.find(Message)).toExist(); // ✅ passes
  });

  test("should render Loading component", () => {
    const wrapper = mount(
      <Suspense fallback={<Loading />}>
        <Thrower />
      </Suspense>
    );

    expect(wrapper.find(Loading)).toExist(); // ❌ Enzyme Internal Error: unknown node with tag 2
  });
})

trace:

    Enzyme Internal Error: unknown node with tag 2

      20 | 
      21 |   test("should render Loading component", () => {
    > 22 |     const wrapper = mount(
         |                     ^
      23 |       <Suspense fallback={<Loading />}>
      24 |         <Thrower />
      25 |       </Suspense>

      at _toTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:254:13)
      at toTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:267:12)
      at childrenToTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:227:14)
          at Array.map (<anonymous>)
      at map (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:269:27)
      at childrenToTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:248:19)
      at toTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:267:12)
      at childrenToTree (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:169:19)
      at Object.toTree [as getNode] (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:448:11)
      at new getNode (node_modules/enzyme/src/ReactWrapper.js:117:44)
      at mount (node_modules/enzyme/src/mount.js:10:10)
      at Object.mount (__tests__/Suspense.spec.js:22:21)

Expected behavior

No error

Your environment

API

• shallow
• mount
• render

Version

library	version
enzyme	3.10.0
jest-enzyme	7.0.2
react	16.8.6
react-dom	16.8.6
react-test-renderer	16.8.6
adapter (below)	1.14.0

Adapter

• enzyme-adapter-react-16
• enzyme-adapter-react-16.3
• enzyme-adapter-react-16.2
• enzyme-adapter-react-16.1
• enzyme-adapter-react-15
• enzyme-adapter-react-15.4
• enzyme-adapter-react-14
• enzyme-adapter-react-13
• enzyme-adapter-react-helper
• others ( )