I installed fw 9.0 using Choi. I made sure to download the updated patches for Atmosphere from this forum. I made sure to download the latest release of Atmosphere itself on Github, and simply replace the files it asks to on the SD card as always. I made sure to download the new fussee primary.bin from there, too. I also don't have any custom themes installed. I also made sure to try it with and without a game card inserted. So I'm not really sure where to go next for these crashes, as they simply always happen after the Switch logo appears.