Problems with Russian translation. (Gamedec)

I play the license from GOG, sometimes in dialogues I came across replicas in Polish, despite the fact that the rest of the answers were in Russian, but these were isolated cases, you can forgive .... Now I have reached the stage of "Roofs", this is the next stage after the theater in the world of vice and everything there is generally completely in Polish. Despite the fact that the Russian language is naturally set in the settings. Has anyone encountered a similar problem? I would be grateful for a hint on how to solve this problem.