My previous edit was a bit premature. The save state crashed twice in a row yesterday, but runs fine today. I'll give you a save state that consistently crashes for me to avoid "user error" on my part. Like I said, save states have crashed on me before on 4.0 in XBC, but it's rare enough that you're going to be in for a long wait.
In the meantime, if you happen to be curious and want to see one way to consistently hang XBC when loading save states, just try loading any save state made under the JIT or JITIL recompilers with the CPU emulated using the Interpreter. For whatever reason, Interpreter-made save states load fine under any method of CPU emulation. Also, every other game I tested loaded JIT/IL-made save just fine when using the Interpreter, but not XBC; this game was the sole exception. I get that JIT/IL has a lot more complex components to deal with, but I get the feeling the CPU emulator engine shouldn't normally make a difference when loading or saving states since most games are okay with it. This is just a side observation (a fluke of discovery really) in case its of any interest to you. And to be sure, Dolphin definitely hangs; I loaded the save state of a cutscene, and in all of 15 minutes, it hadn't progressed, even though Dolphin reported 3 FPS.
In the meantime, if you happen to be curious and want to see one way to consistently hang XBC when loading save states, just try loading any save state made under the JIT or JITIL recompilers with the CPU emulated using the Interpreter. For whatever reason, Interpreter-made save states load fine under any method of CPU emulation. Also, every other game I tested loaded JIT/IL-made save just fine when using the Interpreter, but not XBC; this game was the sole exception. I get that JIT/IL has a lot more complex components to deal with, but I get the feeling the CPU emulator engine shouldn't normally make a difference when loading or saving states since most games are okay with it. This is just a side observation (a fluke of discovery really) in case its of any interest to you. And to be sure, Dolphin definitely hangs; I loaded the save state of a cutscene, and in all of 15 minutes, it hadn't progressed, even though Dolphin reported 3 FPS.