[GAME BUG]: Apple M4 Pro - CUSA03173 Bloodborne - Crashes after a few seconds into gameplay (Possible hotfix using terminal?)

[eureka417]

Checklist (we expect you to perform these steps before opening the issue)

• I have searched for a similar issue in this repository and did not find one.
• I am using an official build obtained from releases or updated one of those builds using its in-app updater.
• I have re-dumped the game and performed a clean install without mods and the issue is still present.
• I have disabled all patches and cheats and the issue is still present.
• I have all the required system modules installed.

Describe the Bug

First of all, sorry if this a duplicate of a known issue, but aside of the crashing bug, I will detail how I managed to get prolonged sessions of gameplay on MacOS for Bloodborne using an M4 series chip.

Without any resolution patches applied, the game will crash after a few seconds into gameplay.

With the 720p or 626p resolution patch enabled, the session can last for about one minute before crashing.

While testing different environment variables using the MacOS' Terminal, I found that using "export MVK_CONFIG_RESUME_LOST_DEVICE=1" helps the emulator avoid those previous crashes and let the gameplay continue for about 10-15 minutes before completely crashing.

However, this will result in textures and lights start to flicker like crazy after a few crashes avoided. The player model or some NPCs textures can be distorted (similar behavior like the vertex explosion issue).

Reproduction Steps

In-game crash. No patches enabled (just HTTP disabled for the sake of cleaner logs).

bb.crash.mp4

no patches enabled.txt

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720 patch enabled. Enviroment variables used:
export MVK_CONFIG_LOG_LEVEL=4
export MVK_CONFIG_RESUME_LOST_DEVICE=1
./shadps4.app/Contents/MacOS/shadps4

Terminal debug logs can be seen on the left side of the screen.
You can see how the game tries to crash at several moments (different "[MKV-warn] errors" appear on the logs)

patch.and.enviroment.variable.mov

I was able to prolong the session for 14 minutes before the game finally crashed.
I was able to finish the Hemwick area, teleport to Hunter's Dream and do the whole Central Yharnam level until the Cleric Beast boss arena.

patch.and.enviroment.variable-2.mov

720p patch enabled + variables.txt

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I also tested the game with those variables and no resolution patches and could get around 7 minutes of gameplay without crashing.
Note that this is not 100% consistent and that some times it could result in fewer session time.

Whenever there are visual bugs, a quick save and reload can fix some of these.

variables enabled without patches.txt

Specify OS Version

MacOS 15.3

CPU

Apple M4 Pro

GPU

Apple M4 Pro

Amount of RAM in GB

24GB RAM shared with CPU/GPU

Amount of VRAM in GB

24GB RAM shared with CPU/GPU

Log File

no patches enabled.txt

720p patch enabled + variables.txt