[BUG]: Fu-un Bakumatsuden [SLPM-65813] - Broken Blur Filter

[wxvu]

Describe the Bug

In Fu-un Bakumatsuden, the blur filter used in cutscenes is broken.

Reproduction Steps

Start a new game and watch the opening cutscene.

Expected Behavior

No response

PCSX2 Revision

v2.5.331

Operating System

Windows 10 (64bit)

If Linux - Specify Distro

No response

CPU

AMD Ryzen 7 7700X

GPU

NVIDIA GeForce GTX 1050 Ti

GS Settings

No response

Emulation Settings

No response

GS Window Screenshots

6x HW

1x HW vs SW

Logs & Dumps

Fu-un Bakumatsu Den_SLPM-65813 (1).gs.zip

[refractionpcsx2]

Fu-un Bakumatsu Den broken real 16bit to 32bit shuffle.zip

Here is a dump of the broken draw 135 which is a shuffle from a real 16bit Z buffer to a C32, shuffling in to the alpha channel, the files around this draw are just to show the Z buffer is actually Z16S and the main image is C32.

The issue is for some reason it gets swizzled funnily, causing the blur to be in the wrong place.