I have the exact same issue. Anytime I try to polar align or plate solve it instantly crashes. I am using a Mac M1 chip Sonoma 14.2.1. I also have the issue using both the simulator and my own equipment. I am able to guide and capture images. I have been trying to get this to work for over a month now.
I too had no helpful logs from within Kstars Ekos. I know the apple crash reports are not overly helpful but here is the termination reason it provided me: