Error Codes Starting with U | ErrorDB
13 error codes — Browse error codes starting with U. Community-verified fixes for each error.
UBISOFT_CONNECT_OFFLINE
UBISOFT_CONNECT_OFFLINE
UNDEFINED_COLUMN
Undefined column.
UNDEFINED_OBJECT
Undefined object.
UNDEFINED_TABLE
Undefined table.
UNEXPECTED_STORE_EXCEPTION
Storage-related blue screen. SSD/HDD or storage driver issue.
UNIQUE_VIOLATION
Unique violation.
UNITY_CRASH
Unity Engine crash — check Player.log or output_log.txt.
UNITY_DX11_ERROR
Unity DirectX 11 render error — try forcing DX12 or Vulkan.
UNKNOWN_CRASH
Error code UNKNOWN_CRASH — community-reported fix.
UNREAL_D3D_LOST
Unreal Engine lost D3D device — GPU driver crash or timeout.
UNREAL_ENGINE_CRASH
Unreal Engine 4/5 crash — check logs in Saved/Crashes/ folder.
UNREAL_OUT_OF_VIDEO_MEMORY
Unreal Engine ran out of VRAM — lower texture/effect settings.
USB_DEVICE_NOT_RECOGNIZED
USB not recognized. Try different port, update drivers.