Emulator

What steps will reproduce the problem?

1. Open any game in Dolphin
2. Try loading a savestate (F1..F12) which doesn't exist (there could be other error cases)

What is the expected output? What do you see instead?
I expect Dolphin to print a "State not found" error and to resume emulation normally.
Instead, Dolphin's emulation is paused and remains in that state until I press the "Pause" button.
The "State not found" error may have already vanished depending on the time you press the "Pause" button.

Dolphin version with the problem? Other Dolphin version without the
problem?
r5998 (Mamario) and r5999 (EmuCR) don't have this problem, whereas r6000 (Mamario) and r6499 (my latest compiled build) do have this problem.

32-bit or 64-bit and any other build parameters?
32-bit. I used the pre-compiled builds from Mamario and EmuCR to narrow down the culprit revision.

OS version and versions of tools/libraries used?
Windows 7 Ultimate x86

Please provide any additional information below.
The 'return;' instructions in LoadStateCallback() seem to be the problem here, as the "PowerPC::Start();" function wouldn't be called afterwards.