Search Input Not Filtering Results by Category After Selection

There are two pages, ‘Home’ and ‘Results’, in my SPA app, each with input searches (+ Search&Autocorrect) and focus groups with sub-categories that lead (via workflow) to the ‘Results’ page to display products in the RG.

This basically works (searching for titles or sorting by categories).

However, after selecting a category, the input search no longer filters each category in more detail.

Both input searches have conditionals in the RG to match Search&Autocorrect values.
The several focus groups display lists (categories) with workflows.