[macOS] [BB] MoltenVK Crash (possibly tessellation related)

[shinra-electric]

Using latest main (ccfb1bb) Bloodborne [CUSA03173] will reproducibly crash with two errors when trying to enter the Forbidden Woods:

[mvk-error] VK_ERROR_INITIALIZATION_FAILED: Vertex shader requires output buffer, but there is no free slot to pass it.
[mvk-error] VK_ERROR_INITIALIZATION_FAILED: Tessellation control shader requires tessellation level output buffer, but there is no free slot to pass it.
[Debug] <Critical> vk_graphics_pipeline.cpp:operator():339: Assertion Failed!
Failed to create graphics pipeline: ErrorInitializationFailed

Unfortunately I can't confirm if the tessellation branch was the cause, as all previous GitHub actions have expired.

Edit: I should note that on a previous build I was able to enter this area and reach the door at the end, although at that time I did not have the password to proceed further.

Terminal Log:
BB Terminal Output.txt

Save (just move forward through the doorway to cause the crash):
CUSA03173_save.zip

[squidbus]

I can't use the save file here to reproduce as I don't have the DLC.

[shinra-electric]

I only have the Old Hunters Edition....

But this area is close to the Cathedral Ward lantern in the base game, maybe someone with the same game version can donate a save.

Here is the exact location:

BB_Crash.mp4

[shinra-electric]

Adding details for another crash. It is likely the same cause as the one above.

[mvk-error] VK_ERROR_INITIALIZATION_FAILED: Vertex shader requires output buffer, but there is no free slot to pass it.

---

I encountered a reproducible crash in the first chalice dungeon in CUSA03173 1.09.

The location is the very first dungeon. In order to access it you need to have defeated the blood-starved beast, so here is a save:
SPRJ0005.zip

Logs
shad_log.txt
Terminal Saved Output.txt

Location

ChaliceDungeonCrash.mp4

System
M1 Pro
Sequoia 15.2

[shinra-electric]

I tried replacing libMoltenVK.dylib with one including Squidbus' PR Reduce number of unused pipeline bindings reserved for argument buffers.

It fixed the first instance of the crash, and I can now proceed into the forbidden woods.

However it still crashes at the same point entering the first chalice dungeon:
error: cannot reserve 'buffer' resource location at index 17

ChaliceD.txt
shad_log.txt

Edit:
I get another crash with the same error message in the Forbidden Woods when entering the cave that leads to the back of Iosefka's clinic.