Describe what you were doing when the bug occurred:
1. I was using the devtools to investigate some performance issues w/ an app I help maintain
2. I had just turned on the "Record why each component rendered while profiling" checkbox
3. I ran a profile while navigating on the underlying page

The react profiler tab in the devtools gave this error, I think as I clicked the record icon to stop recording the profile.

---------------------------------------------
Please do not remove the text below this line
---------------------------------------------

DevTools version: 4.5.0-355970aa4

Call stack: at N (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:160881)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:160015)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)
    at j (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:159939)

Component stack: in ec
    in div
    in div
    in div
    in So
    in Unknown
    in n
    in Unknown
    in div
    in div
    in rl
    in Ze
    in fn
    in Ga
    in _s
const hostFibers = findAllCurrentHostFibers(
              getFiberID(getPrimaryFiber(nextFiber)),
            );
            hostFibers.forEach(hostFiber => {
              traceUpdatesForNodes.add(hostFiber.stateNode);
            });
          }
        }
      }
    }
    if (shouldIncludeInTree) {
      const isProfilingSupported = nextFiber.hasOwnProperty('treeBaseDuration');
      if (isProfilingSupported) {
        recordProfilingDurations(nextFiber);
      }
    }
    if (shouldResetChildren) {
       W
       s
      if (shouldIncludeInTree) {
         N
        let nextChildSet = nextFiber.child;
        if (nextDidTimeOut) {
           S
          const nextFiberChild = nextFiber.child;
          nextChildSet = nextFiberChild ? nextFiberChild.sibling : null;
        }
        if (nextChildSet != null) {
          recordResetChildren(nextFiber, nextChildSet);
        }