I merged the users and custom fields from a joomla 2.5 to another 2.5 site. 2 questions:

1. Fields are exported and imported, they can be seen in the field management but they are not visible at the actual users. See attachement.

2. 2 fields are not being imported for some reason as they are under available fields in the old CB.

"Terminating because of undefined header variables" indicates that there are field headers in the CSV which do not correspond to existing fields in CB. Looks like the problem is with the last two fields.
CBjuice2 does not create fields.