Check and enable Web Server Rewrites
To enable URL rewrites
- Stores>Configuration> Web
- Expand the Search Engine Optimization section
- Set Use Web Server Rewrites to “Yes.”
- When complete, tap Save Config
Follow this link for more info https://www.magestore.com/magento-2-tutorial/magento-2-how-to-configure-url-rewrites/ .
Try to update your rule into this .
Redirect 301 /store/bra_bust_lift.html /intimates/womens-intimates/bra-converters.html
Check if you apache needs a restart . Do a flush cache storage.
Check if you use nginx instead of apache .