When you say they won't load, do you mean that it gets stuck on the "Loading..." screen, or simply shows no items?

Have you tried clicking "Toggle" to toggle the search filters? The item results show up beneath them on mobile so you need to toggle the filters to give them space.

If that doesn't work, could you share a screenshot of what your search filters look like? Make sure you don't accidentally have a layer or drawer selected unintentionally!