Fields not appearing

Love the idea of the plugin, especially since I want to allow file uploads.

But I can’t seem to get it working. Here’s a screenshot of the Additional Fields: https://workdrive.zohoexternal.com/file/evzw3f5123b97866741b98240f9c1aa4a3854

I’m using Astra and Elementor, and I can’t figure out if I’ve missed a step or setting (I’ve looked at the documentation) because even if I try to edit the existing fields by moving them around or disabling them, it doesn’t work.

Are there settings within Woocommerce or Astra’s customizer I need to change?

Any ideas?

The page I need help with: [log in to see the link]