Category autocomplete stopped working on our site?

What is the feature called when you use a hash tag + category or tag and the options begin to appear? I’m looking for this behavior:

For some reason it seems to have stopped working for me in this version: v2.3.0.beta1 +16. I have tested it in two browsers and it isn’t working. I want to search the updates and discourse to see if anyone else has reported it. Thanks.

It is called autocomplete it is working here which is running latest so something specific to your site.

Can you try Safe mode? How to use Discourse Safe Mode

If that fails, uninstall all 3rd party plugins and try again.