I am going along with the News Aggregator tutorial and can add, create and edit articles just fine, but sometimes images simply do not get displayed in the view, despite being successfully added to the Data Table (I can see them in the table and download them without issue). App link and example images of the problem below.
Same behavior observed with a clone of the canonical News Aggregator tutorial app. However, it’s specific to certain images. One such image is linked here. I have no idea what makes this image special; my image viewers on my computer can open it without incident.