Hmm I was wrong, Amethyst is still crashing. After I reset my relay list to Iris default Amethyst takes a bit longer to crash. I tried to wipe my app data. Upon reloading my nsec Amethyst still crashes.
Amethyst went most of the past week without crashing but now I can't use it anymore.
The only other thing I did differently today was I used Iris to delete several of my own posts. I haven't done that for a few weeks. Could this be causing an issue for Amethyst?