Same issue here.

Character : Maelle Solemitan
Formerly known as Kaidenn Dalk in 1.0: race, gender, appearance were also changed.

Server: Ragnarok

This happens since beta phase 3 even before the name, gender, race changes.
It was never acknowledged as 1.0 returning character by NPC and obviously the program (except for my items and mounts, progression etc. that were all there).