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[GH-ISSUE #2119] [GAME BUG]: Apple M4 Pro - CUSA03173 Bloodborne - Crashes after a few seconds into gameplay (Possible hotfix using terminal?) #735

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opened 2026-02-27 21:07:51 +03:00 by kerem · 4 comments

kerem commented

2026-02-27 21:07:51 +03:00

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Originally created by @sdk417 on GitHub (Jan 10, 2025).
Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/2119

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).

https://github.com/user-attachments/assets/65019bb3-8c7b-435c-9914-81613edbf3aa

no patches enabled.txt

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)

https://github.com/user-attachments/assets/2d5b6048-3755-46f7-aed1-f9cdd4c77f94

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.

https://github.com/user-attachments/assets/94af3058-96c8-4390-bd93-7c2b911a1624

720p patch enabled + variables.txt

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

Originally created by @sdk417 on GitHub (Jan 10, 2025). Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/2119 ### Checklist (we expect you to perform these steps before opening the issue) - [X] I have searched for a similar issue in this repository and did not find one. - [X] I am using an official build obtained from [releases](https://github.com/shadps4-emu/shadPS4/releases) or updated one of those builds using its in-app updater. - [X] I have re-dumped the game and performed a clean install without mods and the issue is still present. - [X] I have disabled all patches and cheats and the issue is still present. - [X] I have all the required [system modules](https://github.com/shadps4-emu/shadps4-game-compatibility?tab=readme-ov-file#informations) 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). https://github.com/user-attachments/assets/65019bb3-8c7b-435c-9914-81613edbf3aa [no patches enabled.txt](https://github.com/user-attachments/files/18382225/no.patches.enabled.txt) ------------- 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) https://github.com/user-attachments/assets/2d5b6048-3755-46f7-aed1-f9cdd4c77f94 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. https://github.com/user-attachments/assets/94af3058-96c8-4390-bd93-7c2b911a1624 [720p patch enabled + variables.txt](https://github.com/user-attachments/files/18382632/720p.patch.enabled.%2B.variables.txt) -------- 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](https://github.com/user-attachments/files/18382754/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](https://github.com/user-attachments/files/18382647/no.patches.enabled.txt) [720p patch enabled + variables.txt](https://github.com/user-attachments/files/18382650/720p.patch.enabled.%2B.variables.txt)

kerem

2026-02-27 21:07:51 +03:00

closed this issue
added the
Bloodborne
label

kerem commented

2026-02-27 21:07:52 +03:00

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Owner

@squidbus commented on GitHub (Feb 4, 2025):

This may be fixed by github.com/shadps4-emu/shadPS4@b879dd59c6 (I don't seem to be getting a lot of device loss crashes anymore with it), can you check the latest main build?

@squidbus commented on GitHub (Feb 4, 2025): This may be fixed by https://github.com/shadps4-emu/shadPS4/commit/b879dd59c674b9dae0bf1c4c090cabdce4521d05 (I don't seem to be getting a lot of device loss crashes anymore with it), can you check the latest main build?

kerem commented

2026-02-27 21:07:52 +03:00

Author

Owner

@sdk417 commented on GitHub (Feb 4, 2025):

I have updated to latest main and played for about 15-20 minutes without any crashes.

I will do a long play session later on today to keep testing, but seems to be solved 🙏

@sdk417 commented on GitHub (Feb 4, 2025): I have updated to latest main and played for about 15-20 minutes without any crashes. I will do a long play session later on today to keep testing, but seems to be solved 🙏

kerem commented

2026-02-27 21:07:52 +03:00

Author

Owner

@sdk417 commented on GitHub (Feb 4, 2025):

I managed to get about one hour of gameplay before crashing. After that, the next one happened about 15 minutes into gameplay. Crashes are substantially less frequent now.

m4 crashes.txt

@sdk417 commented on GitHub (Feb 4, 2025): I managed to get about one hour of gameplay before crashing. After that, the next one happened about 15 minutes into gameplay. Crashes are substantially less frequent now. [m4 crashes.txt](https://github.com/user-attachments/files/18659271/m4.crashes.txt)

kerem commented

2026-02-27 21:07:52 +03:00

Author

Owner

@sdk417 commented on GitHub (Feb 16, 2025):

This has been solved. Played through the whole game (doing long gameplay sessions) and didn't have any more VK_ERROR_DEVICE_LOST crashes with the latest 0.6.1 PRs.

@sdk417 commented on GitHub (Feb 16, 2025): This has been solved. Played through the whole game (doing long gameplay sessions) and didn't have any more VK_ERROR_DEVICE_LOST crashes with the latest 0.6.1 PRs.