What I always run into is that when you update your FW and Atmosphere, there seems to leftover from the previous installation.Old sigpatches, tweaks, etc, and they are the things that cause crashes. So for me the standard procedure nowadays is...
Every time I upgrade my EmuNAND to latest firmware, I completely redo my Atmosphere setup, so that there's no leftover from the previous FW. BUt even like this, I usually get more crashes than before. It's a very vanilla setup, no sysmodules. I...