None of the links are working for the sale. I could look at the products in another way, but the links should be working for the sale itself.
I believe Matt is referring to the links in the "Biblical Studies Sale" email that recently arrived. The links didn't work for me, either. It turned out that was because I already owned the resources in the sale, and links in the email hid resources I already owned. This makes sense, but the error message of the website wasn't helpful to let me know that's what had happened. (It just said "We couldn't find what you were looking for.")
Correct. It's because the team appended &unlocked=no to the query to show you only the ones you don't own. That's often helpful, but not when we have small lists of products that some are likely to own all of. And we could definitely improve the messaging on the website in these cases. I reported it yesterday to the teams. We'll be more judicious in the use of the filter, and we'll try to improve the message when there are no matches.