Unreal Engine Issues

Ambient occlusion causing ghosting for animations when viewport is resized on DX11

Tested regression against //UE5/Release-5.4 @ CL35576357 and the issue did not occur. This is a confirmed regression.[Image Removed] Jira Bot attaches conversation thread from Slack [Image Removed]D ...

Converting a modular character to a static mesh can result in a crash or in an asset with corrupted data

Mirror operation on Physics Asset produces wrong results for constraints, including flipped axes

The Physics Asset Editor has a "mirror" feature that allows physics bodies and constraints to be mirrored from one side of a skeleton to the other. If this operation worked correctly, it could save ...

CreateDynamicMaterialInstance will pull from the base rather than overridden mesh on SkinnedMeshComponent when run from construction script

When UPrimitiveComponent::CreateDynamicMaterialInstance is called on a skinned mesh, and the input material is invalid, we call USkinnedMeshComponent::GetMaterial to get the base material on the exi ...

Deleting transient actor marks level dirty

The licensee has noticed that the deletion of a transient actor still marks the scene as dirty and asks it to be saved. Checking the source it was noted that the transient flag is not verified on de ...

[Interchange][FBX] Import model with custom collision prevents socket to be imported

I would like parity with legacy: 1) only one material 2) socket to be imported Box_Socket file imports same in legacy and interchange: it is just box and socket without collision. ...

COND_InitialOnly property not written to first replay checkpoint after being changed

When recording a checkpoint, it is treated as an initial replication, as all the changed properties since the channel was opened need to be recorded. This normally results in any initial only proper ...

Foot Placement: Checks should be ensures

As per the title, a cosmetic anim node should not be crashing an entire game. At worst these should be ensures. Its experimental, but its important they're removed before the experimental flag is re ...

An ensure is triggered when a StaticMesh is set inside a StaticMeshComponent on an actor, and another actor references the static mesh actor from two child actor components.

There is an issue when setting a Static Mesh inside a blueprint that it is referenced by another blueprint with more than one child actor. An ensure is triggered inside the engine, and there is a ...

Translucent materials in the PostMotionBlur pass can cause a flickering viewport artefact when using TAA

There appears to be a bug relating to rendering multiple windows that can trigger under unknown circumstances. It has been reported on rectangle lights in the forums and on PostMotionBlur materials ...