Bar graph standard deviation

Hi everyone,

I have a problem with a bar graph: as soon as I add standard deviations, the bars disappear and I only see the deviations or nothing at all. This is not the case for all bars in the plot. The code looks like this and works fine when I only run everything until "hold on". I checked the variables that go into the plot and they are all fine, no NaN or similar. I attached the plot so you know what I mean. Thanks a lot in advance for any tips!

   subplot(2,2,1)
    bar_vivid.prepost = [mean_vivid.pre.(sprintf('s%d',subject)),mean_vivid.post.(sprintf('s%d',subject))];
    conditions = categorical({'Pre test','Post test'});
    conditions = reordercats(conditions,{'Pre test','Post test'});
    bar(conditions,bar_vivid.prepost,'FaceColor',[0.9255    0.9059    0.3647],'LineStyle','none');
    ylim([3 5.1])
    ylabel('Vividness');
    
    hold on;
    SD_Vpre = std(vivid.pre.(sprintf('s%d',subject)),'omitnan');
    SD_Vpost = std(vivid.post.(sprintf('s%d',subject)),'omitnan');
    
    all_SDV1 = [SD_Vpre; SD_Vpost];
    
    errorbar(conditions,bar_vivid.prepost,all_SDV1,'k','LineStyle','none');

[dpb]

Attach the figure as an image so don't have to download to see it...attaching sufficient data so folks could reproduce a figure with the problem would likely lead to more people trying than having to build something on their own as well...