qwen 3.6 27B looping problem

Whenever I write here that I use gemma 31B I get answers that qwen 27B is better. I switched in the pi from gemma 31B Q5 to qwen 27B Q8 and generally I manage to code, document and run tests but somewhere after exceeding 100k context qwen keeps getting into loops. Do you have any solution for this? I tried to break it and tell him to start over, try again, etc.