Yes, I’m on the same place. My current version is 1.4, did you have recently added it into 1.5?
I have only these fields:
id name username email title created_at trust_level approved suspended_at suspended_till blocked active admin moderator ip_address topics_entered posts_read_count time_read topic_count post_count likes_given likes_received Country (custom user field) Twitter (custom user field) group_names