App id 466224, page: Home.
I have a Combo box that is populated via the REST API (passed through a MAP function.) It has a couple of hundred options in the list.
If I tap the down arrow at the right of the combo box, it drops down, showing the list as expected. I can even select an item, and it works fine.
However, if I tap in the main area and start typing to do a filter/search, it crashes the preview app immediately.
You can see it here: