Even if I lock seed songs came out different

As per title. I want to make two gens exactly the same, it's useful to test LoRa impact, but, despite locking seed, I can't seem to do it. 
I also tried to not initialize the 5hzLM (thus deactivate thinking) but it didn't work either.
Is there a way to obtain 2 exact same song? (btw, I'm using Gradio interface and run with UV, don't know if it's useful to state it)