I'm struggling to make an isolated example of this, but the app where I found this is pretty simple so hopefully it's not too challenging to track down.

So I was profiling https://the-react-bookshelf.netlify.com (locally) and got this when I clicked on the "login" button:

![image](https://user-images.githubusercontent.com/1500684/66011343-fe4dc580-e47f-11e9-9220-50ba884640f3.png)

![image](https://user-images.githubusercontent.com/1500684/66011358-0dcd0e80-e480-11e9-80fb-86c0f2196ef9.png)

The fact that there was no profile data for a commit is interesting. Each commit should be associated to a state update somewhere in the tree, and wherever that happened should trigger at least one component to re-render, but that didn't appear to happen here.

I also verified that I don't have any components filtered out:

![image](https://user-images.githubusercontent.com/1500684/66011428-57b5f480-e480-11e9-9e66-7cf86f8ba48f.png)

And I didn't filter any commits either:

![image](https://user-images.githubusercontent.com/1500684/66011433-5ab0e500-e480-11e9-97a8-be202351870d.png)

Here's the exported profile data:

https://gist.github.com/kentcdodds/dbff66043653333cd22cb9261a08550b

And here's the repo where you can pull it down and reproduce yourself: https://github.com/kentcdodds/bookshelf. The component we're looking at is here: https://github.com/kentcdodds/bookshelf/blob/master/src/unauthenticated-app.js

Sorry I can't give a more direct reproduction.
? Array.from(changeDescriptions.entries())
                : null,
            duration: maxActualDuration,
            effectDuration,
            fiberActualDurations,
            fiberSelfDurations,
            passiveEffectDuration,
            priorityLevel,
            timestamp: commitTime,
            updaters,
          });
        });
        dataForRoots.push({
          commitData,
          displayName,
          initialTreeBaseDurations,
          rootID,
        });
      },
    );
    return {
      dataForRoots,
      rendererID,
    };
  }
  function startProfiling(shouldRecordChangeDescriptions: boolean) {
    if (isProfiling) {
      return;
    }
    recordChangeDescriptions = shouldRecordChangeDescriptions;