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### Which website or app were you using when the bug happened?

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### What were you doing on the website or app when the bug happened?

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2. <!-- FILL THIS IN -->
3. <!-- FILL THIS IN -->

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### Generated information

DevTools version: 4.13.1-93782cfed2

Call stack:
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:21447:43
    at bridge_Bridge.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19607:22)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19767:12
    at listener (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:37788:39)

Component stack:
(none)

GitHub URL search query:
https://api.github.com/search/issues?q=Cannot%20add%20child%20%20to%20parent%20%20because%20parent%20node%20was%20not%20found%20in%20the%20Store.%20in%3Atitle%20is%3Aissue%20is%3Aopen%20is%3Apublic%20label%3A%22Component%3A%20Developer%20Tools%22%20repo%3Afacebook%2Freact
return fiber;
    }
     I
     t
     s
    let a: Fiber = fiber;
    let b: Fiber = alternate;
    while (true) {
      const parentA = a.return;
      if (parentA === null) {
         W
        break;
      }
      const parentB = parentA.alternate;
      if (parentB === null) {
         T
         h
         i
         o
        const nextParent = parentA.return;
        if (nextParent !== null) {
          a = b = nextParent;
          continue;
        }
         I
        break;
      }
       I
       a
       p