Unreal Engine Issues

Landscapes cause Vulkan crash related to GRHISupportsAttachmentVariableRateShading

Binary (Installed Build)//UE5/Release-5.1 @CL22986940 I encountered this same crash when creating a landscape twice, but was not able to consistently reproduce it with those steps. I figured out th ...

If CustomNearClippingPlane of UCineCameraComponent changed, it will be reflected in normal CameraComponent as well

CustomNearClippingPlane of UCineCameraComponent is new property in 5.1, but if use change this, it will also be reflected in the normal CameraComponent's NearClip. This is because the PerspectiveNe ...

Animation to Ragdoll: Character flips direction for 1 frame

Character rotates 90 degrees abruptly for one frame so that it appears to "flip-flop" for that one frame between Death animation and conversion to ragdoll physics This is in relation to [Link Remov ...

Using Blend Physics Weight causes skeletal mesh to spin at high speed

When Phyics Blend in the PHAT editor is set between 0 and 1, the user character will spin wildly. User has image of this affecting character in game whereas I was only able to replicate it in the PH ...

Movie Scene Capture - DX12 Render Artifacts and Delay

If using the Legacy renderer (Movie Scene Capture) with DefaultRHI DirectX12, there's new delay and also some frames get weird artifacts.   However, the delay and artifacts do not appear when using ...

Visible line down center of asset in ContentExamples Cloth 1.6

This does not occur in 4.13.2 at CL 3172292 ...

Leaving engine open for an extremely long time builds up memory usage, eventually crashing upon any activity

Edit MattK: Not reproducible yet If the editor is open and used for a long period of time without being closed, it stores memory use. After building up a significant amount of resources building us ...

[AI] UE_MT_SCOPED_READ_ACCESS(NavElementAccessDetector) Fails in editor on fresh sync

Licensees have reported failed multi-thread access code for NavElementAccessDetector in complex levels that have not finished compilation of their static meshes. The eventual failed check is inside ...

C# UHT fails to recognize delegates declared in another class's namespace

Repro Rate: 3/3 This issue occurs in the live build //UE5/Release-5.1 at CL 23058290. This issue has also been regression tested against //UE5/Release-5.0 at CL 20979098 and is confirmed to be a r ...

Significant Refraction Differences between 4.27 and 5.0