### 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 (child === b) {
             We'
            if (isFiberMountedImpl(parentA) !== MOUNTED) {
              throw Error('Unable to find node on an unmounted component.');
            }
            return alternate;
          }
          child = child.sibling;
        }
         We 
         way 
        throw Error('Unable to find node on an unmounted component.');
      }
      if (a.return !== b.return) {
         The 
         fib
         bel
         set 
        a = parentA;
        b = parentB;
      } else {
         The 
         def
         whi
        
         Sea
        let didFindChild = false;
        let child = parentA.child;
        while (child) {
          if (child === a) {