RedM works on first launch, then relaunch/build switch causes DXGI UI error or VK_ERROR_OUT_OF_DEVICE_MEMORY

RedM Client Support
1

What is the issue you’re having?

RedM setup/install completes successfully, but after setup, every time I launch RedM it immediately crashes with:
Failed to allocate memory for Vulkan.
VkResult: VK_ERROR_OUT_OF_DEVICE_MEMORY
This now happens on every launch.
Vanilla Red Dead Redemption 2 launches and runs normally.
System:
Windows 11 Pro 25H2
NVIDIA RTX 4070 Ti
Steam version of RDR2
Troubleshooting already performed:

  • Fully reinstalled RedM
  • Fully reinstalled RDR2
  • Installed both RDR2 and RedM on the same C: drive
  • Confirmed Windows only detects the RTX 4070 Ti
  • Vanilla RDR2 works normally
  • RedM still throws VK_ERROR_OUT_OF_DEVICE_MEMORY immediately after fresh setup
    I have attached the Cfx crash dump generated by “Save information.”

What have you tried already to fix the issue?

Troubleshooting already performed:

  • Fully reinstalled RedM
  • Fully reinstalled RDR2
  • Installed both RDR2 and RedM on the same C: drive
  • Confirmed Windows only detects the RTX 4070 Ti
  • Vanilla RDR2 works normally
  • RedM still throws VK_ERROR_OUT_OF_DEVICE_MEMORY immediately after fresh setup

Error screenshot(s)

Screenshot 2026-09-28 182506.png
Screenshot 2026-09-28 182506.png379×270 17.9 KB

Windows version

Windows 11 Pro 25H2, build 26200.9550

System specifications

Windows 11 Pro 25H2
NVIDIA RTX 4070 Ti
Steam version of RDR2

Antivirus software

N/A

CitizenFX crash zip file (‘Save information’ on a crash)

CfxCrashDump_2026_09_29_07_50_24.zip (2.04 MB)

Log files

CitizenFX_log_2026-09-29T075000.log (57.3 KB)

2

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