### 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

return data;
        }
      default:
        return null;
    }
  }
  function updateContextsForFiber(fiber: Fiber) {
    switch (getElementTypeForFiber(fiber)) {
      case ElementTypeClass:
        if (idToContextsMap !== null) {
          const id = getFiberIDThrows(fiber);
          const contexts = getContextsForFiber(fiber);
          if (contexts !== null) {
            idToContextsMap.set(id, contexts);
          }
        }
        break;
      default:
        break;
    }
  }
   Differentiates between a null context value and no context.
  const NO_CONTEXT = {};
  function getContextsForFiber(fiber: Fiber): [Object, any] | null {
    switch (getElementTypeForFiber(fiber)) {
      case ElementTypeClass:
        const instance = fiber.stateNode;
        let legacyContext = NO_CONTEXT;
        let modernContext = NO_CONTEXT;
        if (instance != null) {