User blog comment:DaNASCAT/Technical Update: October 9, 2017/@comment-126761-20171011192348/@comment-126761-20171012125726

We're aware of some problems with Lua functionality after Thursday's release, and are working on a fix. Apologies for this issue!

Update: a fix for this issue is now live. If you come across any pages affected by this issue, a null edit (edit + save without making changes) should get them back to normal.