Different mostconfused on different runs

Actually I accidentally closed my notebook after seeing the most_confused of interp and re run the notebook again for advancing further to my suprise, on the first run ‘Egyptian_Mau’, ‘Bengal’, 4 was the most confused but the next time ‘Ragdoll’, ‘Birman’, 8 was the most confused. I am running the code on Kaggle. I am really interested what may have caused this variation as everything according me was the same on the 2nd time i ran the notebook.