Mördog

Hello, I have a problem randomizing my european, digital copy of Omega Ruby. I randomized and patched the game properly and everything worked fine at first glance. The starters were randomized, the story text and the trainer Pokémon as well as the wild encounters. I encountered a Psyduck and thought everything works, but after that I only encountered the normal random encounters of the first routes like Zigzagoon and Poochyena. I randomized the game two more times with my first random encounter changing but every encounter afterwards was a normal encounter again. I really don't know what I am doing wrong and I hope someone can help me. Friendly regards