Ar Tonelico Qoga : Knell of Ar Ciel [BLES01102]

Update: LLVM works and this game now runs at 100 % speed and at least 15 fps on a desktop CPU.

Random hanging is finally 100 % completely fixed. The only remaining issue is that the main menu crashes when a save file exists. But you can still save and load ingame.

For some reason, on the builds from some days ago I get on all Gust games this error spammed infinitely on the log, which grows several GB:

{PPU[0x1000000] Thread (main_thread) [0x00b5fa1c]} cellFs TODO: cellFsStRead(fd=4, buf=*0x86807bc0, size=0x10000, rsize=*0xd00ff038)·U 0:01:57.813330

Any help?

In settings tick the option "load liblv2.sprx only" and in the LLE modules list tick "libfs.sprx" and untick everything else.

LLE selection is automatic now. What this does it to load everything automatically and libfs on top of that. libfs in particular is one module that isn't loaded automatically because it doesn't work in most games. This is a very rare exception.