Based on current available information, 'The Rats: A Witcher Tale' does not appear to portray transsexual characters or explore themes of gender and sexual transformation. Plot summaries and character details focus on a group of thieves and their heist within the Witcher universe, without any indication of such themes.

The film features female characters like Falka and Ciri who engage in direct physical combat using melee weapons against male opponents, including Leo Bonhart and a monster. However, in all described encounters, the female characters are ultimately defeated and do not achieve victory against their male adversaries.

The film's main characters, including Giselher, Mistle, Iskra, Kayleigh, Reef, Asse, and Orla, are all portrayed on screen with the same gender as their established canonical counterparts in Andrzej Sapkowski's Witcher books. No characters have a gender that differs from their original source material.

All major characters in "The Rats: A Witcher Tale" are original creations for this film and do not appear in the established Witcher source material. Therefore, no character has a pre-existing canonical race to be altered, meaning no race swaps occurred.