It seems pretty clear that there are at least some cases in which the test was dropped / failed entirely because of the issue, including the case that The Verge

It seems pretty clear that there are at least some cases in which the test was dropped / failed entirely because of the issue, including the case that The Verge leads with: > Nick Bryner, a high school senior in Los Angeles, had just completed his AP English Literature and Composition test last week. But when he snapped a photo of a written answer with his iPhone and attempted to upload it to the testing portal, it stopped responding. > The website got stuck on the loading screen until Bryner’s time ran out. Bryner failed the test. He’s retaking it in a few weeks. In this case it seems unlikely that the issue is correctable after the fact by the College Board.