Import users via CSV import hangs

I'm trying to import users into a Dev env via CSV, and the UI is hanging.

File looks like

email,id,email_verified,first_name,last_name,hashing_method,hashed_password
[email protected],ANid,TRUE,Name,LNameD,bcrypt,PASSWORD

email,id,email_verified,first_name,last_name,hashing_method,hashed_password
[email protected],ANid,TRUE,Name,LNameD,bcrypt,PASSWORD

No error messages in the console either.
Any ideas?

Import users via CSV import hangs - Kinde