Beehiiv Custom Field Upload Changes for Facebook Campaigns

did Beehiiv change the way you can upload/import custom fields for users? I run FB campaigns, and every once in a while I'd manually upload the lead export from Facebook to Beehiiv to capture all the custom fields I collect from my readers. Before when you import subscribers (even existing subs) to Beehiiv, they gave you an option to map extra columns to custom fields. has this option been changed/removed?