### Website or app

https://github.com/eps1lon/react-devtools-repro-no-matching-node/

### Repro steps

1. `yarn start`
2. Open `App.js`
3. Uncomment the `useEffect` block
4. Click to inspect "Component" in DevTools
5. Error: "_Could not inspect element with id 5_"

Originally reported in https://github.com/facebook/react/issues/21436#issuecomment-835406075

---

https://user-images.githubusercontent.com/12292047/117544707-e6a6cd80-b022-11eb-9f8f-bb8cfd9f7743.mp4

### How often does this bug happen?

Every time

}
          if (!didFindChild) {
            throw Error(
              'Child was not found in either parent set. This indicates a bug ' +
                'in React related to the return pointer. Please file an issue.',
            );
          }
        }
      }
      if (a.alternate !== b) {
        throw Error(
          "Return fibers should always be each others' alternates. " +
            'This error is likely caused by a bug in React. Please file an issue.',
        );
      }
    }
     If the root is not a host container, we're in a disconnected tree. I.e.
     unmounted.
    if (a.tag !== HostRoot) {
      throw Error('Unable to find node on an unmounted component.');
    }
    if (a.stateNode.current === a) {
       We'
      return fiber;
    }
     Otherwise B has to be current branch.
    return alternate;
  }
   END copied code
  function prepareViewAttributeSource(