@cupcake That's weird. It seems to be working for me on Chrome v 65.0.3325.181 on Windows.
I'm sorry guys, all I can do is offer client-side suggestions here. If the server branch is current I'm not sure how else I can help until a new version comes out.
I just took out some custom JS we have inherited from before I took over, but otherwise I don't want to debug these templates manually since then I'd need to make sure they work in every subsequent upgrade as well.