The story of Mrs. Yivga (1990)

Based on the provided input, there is no information available to assess the portrayal of LGBTQ+ characters or themes in 'The story of Mrs. Yivga'. Therefore, the net impact is determined to be N/A due to a lack of depiction details.

The movie does not contain any action or adventure elements.

Due to the film's obscurity and lack of readily available information regarding its source material or character origins, it is not possible to determine if any character was canonically established as one gender and portrayed as another. Therefore, no gender swap can be identified.

No information is provided regarding the source material, historical context, or character portrayals for "The story of Mrs. Yivga" (1990). Without established canonical or historical racial baselines for its characters, it is not possible to determine if a race swap occurred.