This is how Shrek 2 is supposed to be when transitioning between the book screen and chapter screen (1/6 speed video from BizHawk 2.9.1, but I checked other emulators and real console, and this is more similar to how it's supposed to appear):
This is how it looks in GBAHawk 2.1.1:
This appears to be a regression between GBAHawk 2.0.0 and GBAHawk 2.1.0
This is how Shrek 2 is supposed to be when transitioning between the book screen and chapter screen (1/6 speed video from BizHawk 2.9.1, but I checked other emulators and real console, and this is more similar to how it's supposed to appear):
This is how it looks in GBAHawk 2.1.1:
This appears to be a regression between GBAHawk 2.0.0 and GBAHawk 2.1.0