Delete animation screwed up

[CyberMew]

    [self.m_collectionView.collectionView deleteItemsAtIndexPaths:[NSArray arrayWithObject:indexPath]];

This deletes the cell with nice animation BUT the cells gets squeezed together. See last row in photo. All I did was delete the last cell.

[CyberMew]

Seems like it will only happen on the last row when you do this:

• (CGSize)collectionView:(UICollectionView )collectionView layout:(UICollectionViewLayout)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
  {
  if(indexPath.row % 2)
  {
  return CGSizeMake(100, 200);
  }
  return CGSizeMake(200, 100);
  }

[lxcid]

I'm not sure I get you. I don't remember doing anything that will affect deletion of cell behaviour. Can you swap out LXReorderableCollectionViewFlowLayout with the generic UICollectionViewFlowLayout and see if the issue still exists?