Persistent Column Headers in Paginated Reports

I couldn't find a channel for Power BI Report Builder so apologies if this is the wrong forum.

I'm new to building paginated reports and I've struck a problem that's probably quite easy to fix.

My dataset is a table with about 20 rows. I want one row from the table to appear on each page, which I've done by checking this box in the row group properties:

This is fine except the column headers of the table only appear on page 1. From what I can gather the way to pin the column headers on each page is this option in the table properties:

However, it doesn't work. I've tried ticking all the boxes in the Row Headers and Column Headers sections but nothing works.

Can anyone tell me how to solve this? Thanks in advance.