I kept getting error code 732819469 and after doing fresh installs and following the instructions to install Vulcan runtime, update all my drivers, delete this or that, etc and not getting anywhere I finally found this reddit post. [Fix] PTU 4.5 Vulkan crash on NVIDIA (error code 732819469 / Failed to create Vulkan logical device) : r/starcitizen Vulkan is now working and I wanted to post this here so people can find it. Good luck out there.