The query doesn't return more than one column.

However, I checked it wasn't a scalar issue in one of the things I tried...
- Forcing array context my ($crid) = $crm->db->selectrow_array - no change

Raise Error is on by default and would be caught by the error trapping on the next line.

edit - it also isn't returning undef, it is returning zero which is what is really confusing.