my F1 car

About this project

same thing but my version lets try to assign rotating walls once again and get multiple boundary conditions errors once again. Dear visitor, if you know how to solve this problem pls lmk cuz I am positive that I am only assigning it to one bc. My theory is that the small faces such as 4079 may be included in a bigger face like 39 which I have assigned before. But idk how to separate them.