ODK XLsForm Appearance search('EPIDATA') not working in new version of ODK-Collect

I can't see your second screenshot but I'm guessing that you would like for it to include a search box that users can type filter text into, is that correct?

The search() appearance/function is meant just to pull records from a CSV. It was unintentional that search() started showing that search box when the (different) search appearance was introduced. If you would like to combine them, you can use search search().

In general, I invite you to follow the releases category so you can see when new versions come out and try them out in beta to make sure they work for you. In fact, there's a beta out now.