Anybody else seeing a crashing problem?

The error is: uncaught ObjC exception, reason: attempt to delete and reload the same index path (<NSIndexPath: 0xc000000067e00016> {length = 2, path = 0 - 831})

Seems to happen when a person makes a change to a photolibrary.
I believe it crashes in the block self.collectionView performBatchUpdates

Thanks,
Chris