Demon's Souls [BLES00932] freezes but music and ambience continue playing

I've run into the same issues as you, on an extremely similar system-
OS: Windows 10
CPU: i7-8700K @4.9Ghz
RAM: 32GB @2400Mhz
GPU: EVGA GTX 1070 (431.36)
Renderer: Vulkan
rpcs3: Tested on every build from 8568-8612

From what I've gathered from reading my own logs (with sceNp: Fatal), the emulator loops the following output (on my end, at least) until emulation is stopped:

Code:

·W 0:03:11.667207 {PPU[0x1000017] Thread (NexusRevolution Main) [0x01d54f74]} sys_lwmutex: _sys_lwmutex_create(lwmutex_id=*0xd02687f0, protocol=0x2, control=*0xd0268a20, has_name=0x80000001, name=0xd0268a10)
·W 0:03:11.667236 {PPU[0x1000017] Thread (NexusRevolution Main) [0x01d54f74]} sys_lwmutex: _sys_lwmutex_create(lwmutex_id=*0xd0268750, protocol=0x2, control=*0xd02689f0, has_name=0x80000001, name=0xd0268a18)
·W 0:03:11.667254 {PPU[0x1000017] Thread (NexusRevolution Main) [0x01d55218]} sys_lwmutex: _sys_lwmutex_destroy(lwmutex_id=0x95063800)
·W 0:03:11.667270 {PPU[0x1000017] Thread (NexusRevolution Main) [0x01d55218]} sys_lwmutex: _sys_lwmutex_destroy(lwmutex_id=0x95063700)

I've attached my personal log from the run above to this replay, although it did have sceNp: Fatal on in order to make it easier to find whatever was looping.