Unreal Engine Issues

[Merge Actor] Lightmap UVs are broken after merging meshes

This issue occurs when merging static meshes that have multiple LODs. If they are using UV1 for lightmap index, after merging, the UV1 of the result for each LODs will all be differents, making the ...

When using ProceduralFoliageVolume, ActorFoliage can be used even if World Partition is enabled in UE5.0

UE5.0 does not support ActorFoliage at Levels where World Partition is enabled ( [Link Removed] ), but ActorFoliage will work via ProceduralFoliageVolume. And when you cook the level you will get an ...

Foliage is placed on LevelInstanceActor does not follow basecomponent when the LevelInstanceActor moves

Foliage usually follows when the Transform of the placed ground or floor changes. However, if the ground or floor is a Level Instance Actor, it will not follow. The cause is in the code below. voi ...

Properly handle child actor component referencing Level Instance actor

Runtime Virtual Texture samples at low precision for very large volumes

When using a runtime virtual texture with a resolution of greater than 2^24 we can start to see a lack of precision in sampling when the sampling UVs get closer to 1. To see this we need to be usin ...

Scaling actor along the Z Axis while the X and Y axis are set to 0.01 causes the Actor to stop rendering in the scene

This is a regression tested in //UE5/Release-5.0 CL18319896 Scaling a Static Mesh along the Z Axis while the X and Y axes are set to 0.01 causes the Actor to stop rendering in the scene once the Z ...

Collision settings of an Instanced Static Mesh setup in the Construction Script are not preserved when the Actor is added to an Instanced Level

Tested in //UE4/Release-4.27 CL 18319896 using Level Streaming the camera was ignored by the ISM_Cube. Collision settings of an Instanced Static Mesh setup in the Construction Script are not preser ...

IKRetargeting Skeletal Mesh Does Not Update Virtual Bones

Occurs 5/5 times. Regression does not occur: UE5Manny Skeletons are new to UE5.0  ...

iOS packaging does not seem to be able to exclude assets not in chunk0 when using ChunkDownloader

Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets

Occurs 5/5 times Virtual Bones are not retained in Retargeted Animation Aim Offset. Regression does not occur as UE5 Manny assets are not available for retargeting before UE5.    ...