Hi all, apologies for the issue --
There is indeed a bug on our end where survey data is not populating in that tab, but it is still available behind the scenes (i.e. it's not lost and your students won't need to retake the survey). Due to the Hour of Code this week our engineers are prevented from doing any site updates to keep the site stable, but we will fix this next week and the results will be populated for your sections.
Again, we're sorry for the issue, but thank you for escalating the issue to us and for having your students take the survey -- we really appreciate it!