Unreal Editor 4.12 P4 with -vulkan flag Still Crash

My computer configuration:
CPU:XEON E5 2670
GPU:Geforce GTX 980
Memory:DDR3-2400 32G
VulkanSDK Version:
GPU Driver Version:364.91

I’m running windows 7 here, 4.12 Preview 4 compiled from source (with Vulkan SDK already installed) with a GeForce GTX 980. Normal editor runs fine, and I can preview in Vulkan PIE mode. I crash when adding the -vulkan flag. Stack is too big for the comment, so I attached a text file. Top error is:

Fatal error: [File:C:\UnrealEngine-4.12.0-preview-4\Engine\Source\Runtime\VulkanRHI\Private\VulkanUtil.cpp] [Line: 444] vkCreateSwapchainKHR(Device.GetInstanceHandle(), &SwapChainInfo, nullptr, &SwapChain) failed, VkResult=-1000011001 at C:\UnrealEngine-4.12.0-preview-4\Engine\Source\Runtime\VulkanRHI\Private\VulkanSwapChain.cpp:191 with error VK_ERROR_VALIDATION_FAILED_EXT

Attachment:Error Report
link text


Have you ensured to follow the steps located on the linked wiki guide?

I’m sure that I’m doing exactly that.
Vulkan SDK Version:
OS:Win7 X64 SP1
GPU Driver:368.22
UE4.12 P4

Can you run me through your step-by-step process that you are following to reproduce this crash?


I am marking this topic as resolved for tracking purposes, as we have not heard from you in a few days. If this issue persists, feel free to respond to this thread. For any new issues, please create a new Answerhub topic.

Have a great day

I’m getting this issue as well with 4.12.5

There have been quite a few Vulkan-related crashes fixed since 4.12.5. I’d recommend upgrading to a later version, such as 4.14 or 4.15 and seeing if you’re getting a crash there as well. If you are, please open a new thread in the Bug Reports section and we can investigate it as a separate issue.

Have a great day

I am getting VK_ERROR_VALIDATION_FAILED_EXT error on my GTX Titan Black after building from source with version 4.15.1, I built it with the latest Vulkan SDK. When I try to open UE4 with an RX 480 however, I get bSupportsPresent assertion failure. I am using the latest driver for my Titan but am a few revisions behind the latest for my RX 480.

Could you please provide a detailed list of steps you followed before this crash started occurring? I’d like to attempt to reproduce it on my machine but I’ll need to ensure I follow exactly the same process you did for building the engine.