I had little issue right after re-install entire wine all together in 3.4

What was installed
VulkanSDK-1.0.51.0-Installer.exe
copied winevulkan.json
make some registry adjustment

.reg file
[HKEY_LOCAL_MACHINE\Software\Khronos\Vulkan\Drivers]
"C:\\Windows\\winevulkan.json"=dword:00000000

[HKEY_LOCAL_MACHINE\Software\Wow6432Node\Khronos\Vulkan\Drivers]
"C:\\Windows\\winevulkan.json"=dword:00000000
As above
Already tried with lowercase "windows" and "Windows"

However when I ran vulkaninfo for wine I get
0009:fixme:console:GetConsoleProcessList (0x32fd78,2): stub
===========
VULKAN INFO
===========

Vulkan API Version: 1.0.51

0009:fixme:ver:GetCurrentPackageId (0x32fae8 (nil)): stub
0009:err:vulkan:wine_vk_init Failed to load Wine graphics driver supporting Vulkan.
0009:err:vulkan:wine_vk_init Failed to load Wine graphics driver supporting Vulkan.
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_api_dump.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_core_validation.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_monitor.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_object_tracker.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_parameter_validation.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_screenshot.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_standard_validation.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_threading.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_unique_objects.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_vktrace_layer.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers"
INFO: [loader] Code 0 : Located json file "C:\Program Files\RenderDoc\x86\renderdoc.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ImplicitLayers"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_api_dump.json, version "1.0.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_core_validation.json, version "1.1.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_monitor.json, version "1.0.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_object_tracker.json, version "1.1.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_parameter_validation.json, version "1.1.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_screenshot.json, version "1.0.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_standard_validation.json, version "1.1.1"
INFO: [loader] Code 0 : Encountered meta-layer VK_LAYER_LUNARG_standard_validation
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_threading.json, version "1.1.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_unique_objects.json, version "1.1.0"
INFO: [loader] Code 0 : Found manifest file C:\VulkanSDK\1.0.51.0\Bin32\VkLayer_vktrace_layer.json, version "1.0.0"
INFO: [loader] Code 0 : Found manifest file C:\Program Files\RenderDoc\x86\renderdoc.json, version "1.0.0"
INFO: [loader] Code 0 : Meta-layer VK_LAYER_LUNARG_standard_validation all 5 component layers appear to be valid.
INFO: [loader] Code 0 : Located json file "C:\Windows\winevulkan.json" from registry "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\Drivers"
INFO: [loader] Code 0 : Found ICD manifest file C:\Windows\winevulkan.json, version "1.0.0"
0009:err:vulkan:wine_vk_init Failed to load Wine graphics driver supporting Vulkan.
ERROR: [loader] Code 0 : Failed to open dynamic library "c:\windows\system32\winevulkan.dll" with error 1114
Cannot create Vulkan instance.
C:\Users\david\.jenkins\workspace\LoaderAndValidationLayers\demos\vulkaninfo.c:671: failed with VK_ERROR_INCOMPATIBLE_DRIVER
0009:fixme:console:GetConsoleProcessList (0x32fcd4,2): stub

native vulkaninfo
===========
VULKAN INFO
===========

Vulkan Instance Version: 1.1.70

ERROR: [Loader Message] Code 0 : /usr/lib32/libvulkan_radeon.so: wrong ELF class: ELFCLASS32
WARNING: radv is not a conformant vulkan implementation, testing use only.

And some very long stuffs ...
Presentable Surfaces:
=====================
GPU id       : 0 (AMD RADV POLARIS11 (LLVM 5.0.1))

I am using Arch Linux kernel 4.14.29-1 and RADV as you see above.
Wine is installed from the "multilib/wine 3.4-1"

My wine vulkan files in system32
wine/drive_c/windows/system32/vulkan-1-1-0-51-0.dll
wine/drive_c/windows/system32/vulkan-1.dll
wine/drive_c/windows/system32/vulkaninfo-1-1-0-51-0.exe
wine/drive_c/windows/system32/vulkaninfo.exe
wine/drive_c/windows/system32/winevulkan.dll

Anyone got some idea let me know.