Keyboard Extension not working properly after iOS 10

I made a custom Keyboard app with emojis some time ago for iOS 9.

After iOS 10 came out it stopped working, now only loads the bottom view.

I can't quite figure out what's wrong with my code or what change with iOS 10, I spent the last couple of days searching the web but couldn't find anything useful

Here's the code where it should load the emojis

 - (void)loadNthEmoji{
    [self.keyboard.imvFavorite setBackgroundImage:[UIImage imageNamed:@"btn_favorite"] forState:UIControlStateNormal];

    NSInteger nTag = [defaults integerForKey:@"EMOJI_FACE_EMOJI_KIND"];
    if (nTag == 0)nTag = 1;

    [self setAlpha:nTag];
    [self removeSubViewFromEmojiView];


    CGRect rectWrapper = self.keyboard.scvEmojis.frame;

    CGFloat fSpace = 4;
    NSInteger nEmojiRow = 3;
    CGFloat fHeight = ((rectWrapper.size.height - (nEmojiRow + 1) * fSpace) / nEmojiRow);
    CGFloat fWidth = fHeight;

    NSInteger nCount = [[arrCounts objectAtIndex:nTag]integerValue];

    for (NSInteger i = 0 ; i < nCount; i ++){

        NSInteger nRow = i % nEmojiRow;
        NSInteger nColumn = i / nEmojiRow;


        CGRect rectFrame = CGRectMake(fSpace + (fSpace + fWidth) * nColumn, fSpace + (fSpace + fHeight) * nRow, fWidth/1.3, fHeight/1.3);


        UIImageView *imvEmoji = [[UIImageView alloc]initWithFrame:rectFrame];
        imvEmoji.contentMode = UIViewContentModeScaleAspectFit;
        imvEmoji.tag = 10000 * nTag + i;
        [imvEmoji setImage:[UIImage imageNamed:[NSString stringWithFormat:@"ec%i (%i).png", (int)nTag, (int)i + 1]]];


        UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tabEmoji:)];

        [imvEmoji setUserInteractionEnabled:YES];
        [imvEmoji addGestureRecognizer:tapGesture];

        [self.keyboard.scvEmojis addSubview:imvEmoji];

    }

    [self.keyboard.scvEmojis setContentSize:CGSizeMake(fSpace + (fSpace + fWidth) * ((int)(nCount / nEmojiRow) + (nCount % nEmojiRow == 0 ? 0 : 1)), rectWrapper.size.height)];

    [activityIndicatorView stopAnimating];
    [self.keyboard.viewEmoji setHidden:NO];

}

Edit: still no luck, any help?

Solution

I got it solved by setting a new constrain for the height. In case it helps anyone with the same problem. I tried a lot of answer I found but any worked for me.