It looks like updates are appearing now.

Algolia has confirmed the problem is on there end and says the service should be gradually recovering.

We've identified our search provider, Algolia, as having problems updating its index. In the meantime, your list of questions and pads may be slow to update. We apologize for the inconvenience and are working on getting this fixed upstream.

https://www.dropbox.com/s/94a9zcj5ngtpckr/Screenshot%202018-08-13%2013.42.27.png?dl=0