This particular character is essentially a female unit, meaning the Dragqueen has access to the female-exclusive equipment and the job class Dancer, rather than the male-exclusive job class Bard. If the job is changed to Dancer, the Dragqueen's sprite and portrait will use the Bard's set with the job command Dance. It is unknown whether the presence of the Dragqueen is a bug or an Easter Egg, but its correction for the The War of the Lions version suggests it was a bug. Either way, this phenomenon does not seem to be hazardous.