Animation error

# Reporting a Bug

After adding search functionality (copied from the example) when I search for an item I get following error.

> requestAnimationTimeout.js?ab56:34 Uncaught TypeError: Illegal invocation
at Object.requestAnimationTimeout (requestAnimationTimeout.js?ab56:34)
at Grid._debounceScrollEnded (Grid.js?0f6f:884)
at Grid.handleScrollEvent (Grid.js?0f6f:212)
at Grid._this._onScroll (Grid.js?0f6f:133)
at Object.ReactErrorUtils.invokeGuardedCallback (ReactErrorUtils.js?8875:69)
at executeDispatch (EventPluginUtils.js?5685:85)
at Object.executeDispatchesInOrder (EventPluginUtils.js?5685:108)
at executeDispatchesAndRelease (EventPluginHub.js?3c44:43)
at executeDispatchesAndReleaseTopLevel (EventPluginHub.js?3c44:54)
at Array.forEach ()
requestAnimationTimeout @ requestAnimationTimeout.js?ab56:34
_debounceScrollEnded @ Grid.js?0f6f:884
handleScrollEvent @ Grid.js?0f6f:212
Grid._this._onScroll @ Grid.js?0f6f:133
ReactErrorUtils.invokeGuardedCallback @ ReactErrorUtils.js?8875:69
executeDispatch @ EventPluginUtils.js?5685:85
executeDispatchesInOrder @ EventPluginUtils.js?5685:108
executeDispatchesAndRelease @ EventPluginHub.js?3c44:43
executeDispatchesAndReleaseTopLevel @ EventPluginHub.js?3c44:54
forEachAccumulated @ forEachAccumulated.js?2859:24
processEventQueue @ EventPluginHub.js?3c44:254
runEventQueueInBatch @ ReactEventEmitterMixin.js?9870:17
handleTopLevel @ ReactEventEmitterMixin.js?9870:27
handleTopLevelImpl @ ReactEventListener.js?e4aa:72
perform @ Transaction.js?91bc:143
batchedUpdates @ ReactDefaultBatchingStrategy.js?bdd7:62
batchedUpdates @ ReactUpdates.js?be0d:97
dispatchEvent @ ReactEventListener.js?e4aa:147

**Apart from an error on a console, top and bottom of the tree is hidden on the webpage.**
(search is working ok, items are found)

Does anyone have an idea what causes that and how to solve it?