Hard Crash Refreshing Unread List

The crash report sends me here but I am not sure this is where you want error logs. In any case, here comes one.

In this case I had 1459 unread items that I pruned to 1384 (my backlog marked unread and for follow-up). As has been happening a lot lately, when I switch away from that folder and come back, it has a hard time refreshing, and apparently script errors on the pages that it decides to reprocess (and a bunch of other stuff it apparently attempts to redownload, like attachments) pop up like crazy. I decline debugging all of them, but apparently there were so many this time that the bandit, she floundered and rolled over.