Camera settings don't affect raw (apart from ISO setting), and if (as OP stated) "shots look correctly exposed ... in thumbnails and the jpg ... is good" - while the raw looks blown out, the problem is with raw interpretation; that is, the problem lies with the converters, not with the camera. A camera reset should not help here.
To OP: if you are still experiencing the problem, it would be helpful to make raw files available for analysis (sorry, repeating myself
Both programs are based on dcraw, so they may behave in a similar manner