Emulator

What's the problem?
Start RESIDENT EVIL 4 (GC version), on the main menu select LOAD to access memory card (typewriter), in the typewriter screen press B button to return to main menu (when prompt to Exit select yes): Dolphin will then show some messages (like the one attached)of unknown Ax command and then hang with a black screen (FPS 0 - VPS 60 - speed 100%).

Dolphin version with the problem (as it appears in the title bar, Ex.: "R
4779" or "R 6403M"):
r7329 and every later revision

(optional) Dolphin version that does not have the problem:
r7328 and before

Operating system and version:
32-bit or 64-bit:
WINDOWS XP SP3 32-bit, hd4850, e8400

Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"):
G4BE08

Build command-line (not on Windows):

Was the ISO a plain dump from disc, compressed and/or scrubbed?
Plain dump

Please provide any additional information below.
7329 is definitely responsible for this regression.