Spirit Tracks black screen

I've got the Xenophobia patch on the ROM and I'm playing on an R4 with YSMenu. When I first get to the spirit tower and kill the first phantom, the screen goes black when I try and go up to the next floor. I can still hear the music and everything. Anybody know what is causing this/how to fix it?

Backup your games and save files and format your MicroSD. Freezing issues can be caused by slow MicroSDs, and formatting it can help with that.