Due to a complete lack of information about the film 'Nairobi, 1950', including its plot and characters, it is not possible to determine if LGBTQ+ characters or themes are present or to evaluate their portrayal. An assessment of its net impact on LGBTQ+ representation cannot be made.

There is not enough information available to evaluate the film's portrayal of transsexual characters or themes. Details regarding the plot, characters, or narrative content are currently unknown, preventing a definitive assessment of its net impact.

The movie does not contain any action or adventure elements.

Without details on the film's plot, characters, or any source material it might be adapting, it is impossible to determine if any character's gender has been swapped from a prior established canon or historical record.

There is insufficient information regarding specific characters, their established racial backgrounds in any source material, or the actors cast in the film to determine if a race swap has occurred.