Hi,
Please disable third-party plugins and customizations (if there are any) and check if this issue persists. If you use a caching plugin, ensure that caching is disabled for logged-in users.
Also, please try to enable Generate regions from locations in HivePress > Settings > Geolocation > Regions.
These topics can be useful to resolve your issues, please check them:
Search by location does not work for unauthorized users
Location search not working