Quote:===========
VULKAN INFO
===========

Vulkan API Version: 1.0.65

ERROR: [loader] Code 0 : loader_get_json: Failed to open JSON file C:\Program Files (x86)\Steam\SteamOverlayVulkanLayer64.json
ERROR: [loader] Code 0 : loader_get_json: Failed to open JSON file C:\Program Files (x86)\Steam\SteamOverlayVulkanLayer64.json

Instance Extensions:
====================
Instance Extensions     count = 11
        VK_EXT_debug_report                 : extension revision  9
        VK_EXT_display_surface_counter      : extension revision  1
        VK_KHR_get_physical_device_properties2: extension revision  1
        VK_KHR_get_surface_capabilities2    : extension revision  1
        VK_KHR_surface                      : extension revision 25
        VK_KHR_win32_surface                : extension revision  6
        VK_KHX_device_group_creation        : extension revision  1
        VK_KHR_external_fence_capabilities  : extension revision  1
        VK_KHR_external_memory_capabilities : extension revision  1
        VK_KHR_external_semaphore_capabilities: extension revision  1
        VK_NV_external_memory_capabilities  : extension revision  1
C:\VulkanSDKBuild\workspace\LoaderAndValidationLayers\demos\vulkaninfo.c:1670: failed with
VK_ERROR_INITIALIZATION_FAILED

• Uninstalling display drivers using DDU, then installing the latest update (391.35 for my GPU)
  
• Adding a REG_DWORD in HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\Drivers whose name is the path for the latest nv-vk64.json file located in C:\Windows\System32\DriverStore\FileRepository\nvddi.inf_amd64_8bbe140e99a054e8, with a value of 0
  
• Adding a REG_DWORD in HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\Drivers whose name is the path being asked in vulkaninfo.exe's output, with a value of 0
  
• Uninstalling VulkanRT version 1.0.65.1 and replacing it with the latest version (1.1.92.1); but after doing so, the vulkaninfo.exe display lacked the list of Instance Extensions (see above), so I reinstalled the 1.0.65.1 version, thinking something went wrong
  
• Installing VulkanSDK version 1.0.65.1
  

• I do not know why Vulkan is trying to locate a .json file in a directory that does not exist; I do not have a Steam folder in the Program Files (x86) directory.
  
• I also do not have a directory named 'VulkanSDKBuild'; instead, I have one named 'VulkanSDK'. Is this the reason why I get 'VK_ERROR_INITIALIZATION_FAILED'?
  
• With OpenGL (and a configuration made to increase performance), the game I was running (JJBA: Eyes of Heaven) gets a solid 30 fps in the menu, and 15-25 fps in battles (depending on the map, number of characters left, etc); I wanted to see if Vulkan fixes the the fps issue during battles.