TableViewCell displays incorrectly in iOS 6

I have an annoying problem with displaying `UITableViewCell` with `UIActivityIndicatorView` inside. My tableView delegate loads portions of data. The last cell always indicates loading process while new portion is not loaded. Loading starts in `tableView: willDisplayCell: forRowAtIndexPath:`.So in iOS 5 (or iOS 5 simulator) it works perfectly, but in iOS 6 (or iOS 6 simulator) `UIActivityIndicatorView` displays only for the first time. Maybe something was deprecated since iOS 6 or it's iOS 6 bug? Here is my dataSource: ``` - (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath { UITableViewCell* cell = nil; if (_callback != nil && !_noMoreBooks && indexPath.row == [_books count]) { cell = [tableView dequeueReusableCellWithIdentifier:LTTableViewLoadMoreCellIdentifier]; if (cell == nil) { cell = [[[LTLoadMoreCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:LTTableViewLoadMoreCellIdentifier] autorelease]; [(LTLoadMoreCell*)cell setRowTag:-1]; } } else { cell = [tableView dequeueReusableCellWithIdentifier:LTTableViewCellIdentifier]; if (cell == nil) { cell = [[[LTBookCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:LTTableViewCellIdentifier] autorelease]; cell.selectionStyle = UITableViewCellSelectionStyleGray; ((LTBookCell*)cell)._hidePrice = NO; } } return cell; } ``` Here's my delegate: ``` - (void)tableView:(UITableView*)tableView willDisplayCell:(UITableViewCell*)cell forRowAtIndexPath:(NSIndexPath*)indexPath { if ([LTTableViewLoadMoreCellIdentifier isEqualToString:[cell reuseIdentifier]] && [(LTLoadMoreCell*)cell rowTag] != indexPath.row) { [(LTLoadMoreCell*)cell setRowTag:indexPath.row]; NSUInteger remain = LT_STORE_BOOK_LIST_LIMIT - rowsLoaded; NSUInteger by = remain < LT_STORE_BOOKS_LOAD_PORTION ? remain : LT_STORE_BOOKS_LOAD_PORTION; _currentError = _callback(_genres, rowsLoaded, by); if (_currentError == LTNoInternetError) { [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (_currentError != LTErrorNone) { _noMoreBooks = YES; } } else if ([LTTableViewCellIdentifier isEqualToString:[cell reuseIdentifier]]) { if ((indexPath.row == rowsLoaded-1) && _currentError == LTNoInternetError) { NSUInteger remain = LT_STORE_BOOK_LIST_LIMIT - rowsLoaded; NSUInteger by = remain < LT_STORE_BOOKS_LOAD_PORTION ? remain : LT_STORE_BOOKS_LOAD_PORTION; _currentError = _callback(_genres, rowsLoaded, by); if (_currentError == LTErrorNone) [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewScrollPositionBottom]; } LTBook* rowBook = [_books extraObjectAtIndex:indexPath.row]; if (rowBook != nil) { ((LTBookCell*)cell)._book = rowBook; ((LTBookCell*)cell).isOdd = (indexPath.row % 2); } } } ``` And this is LoadMoreCell.m: ``` #import "LTLoadMoreCell.h" @implementation LTLoadMoreCell @synthesize rowTag; - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString*)reuseIdentifier { self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; if (self) { _activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; [_activityIndicatorView startAnimating]; [[self contentView] addSubview:_activityIndicatorView]; [self setUserInteractionEnabled:NO]; } return self; } - (void)dealloc { [_activityIndicatorView release]; [super dealloc]; } #pragma mark - #pragma mark *** UITableViewCell methods *** #pragma mark - - (void)layoutSubviews { [super layoutSubviews]; [_activityIndicatorView setAutoresizingMask:UIViewAutoresizingNone]; CGSize cellSize = [[self contentView] frame].size; [_activityIndicatorView setCenter:CGPointMake(cellSize.width / 2, cellSize.height / 2)]; } @end ```