Unreal Engine Issues

Can't assign LightMapCoordinateIndex on Static Mesh with generated LODs

Once a static mesh have generated LODS, the only lightmap index value the static mesh editor's UI accepts is 0. We should be able to set the index to any value between 0 and 3 as long as there are ...

[Audio Modulation] - Ensure is thrown when attempting to modulate a Source Effect at runtime

Does *not* occur in editor. Only in standalone and runtime. Occurs when modulating Chorus or Bit Depth Also occurs in 5.2 and 5.3. I also noticed the test with this is supposed to set the chorus e ...

Set World Scale 3D on Attached Actor Allows Character to Jump Through Collision

The collision of the cube static mesh is not blocking the character after Setting World Scale 3D while it is attached to another actor using the AttachToActor node. ...

Merging negative-scaled actors breaks materials

Materials are broken when merging a mesh with another that has negative scale Licencee states that bisMirrored in FMeshMergeHelpers::TransformRawMeshVertexData seems to be involved. Does not occur ...

Changing Asset Manager settings breaks game feature scan directories

The asset manager is used to scan directories on disk for different Primary Assets that can then be loaded on demand. Game feature plugins support the ability to add additional scan directories when ...

Editor crash when Landscape Comp. LODBias set to value greater than 0

When LODBias for a landscape component is set to anything greater than zero, the editor will crash. Reproduced in 4.19.0 CL 3944462 and 4.20 Main. Not able to be reproduced in 4.18.3 CL 3832480. T ...

Ensure when changing the separate translucency buffer resolution and open the map in which PostProcessVolume is placed

TAssetPtrs are not properly fixed up in client PIE instances

Contrary to the linked UDN question, this doesn't seem to require the actor to be replicated. The problem is that when UWorld::DuplicateWorldForPIE is called for a PIE client instance's persistent ...

Math Nodes are not updating on input

Add, Multiply, Subtract and Divide Nodes in the Material Editor are not longer updating on input but on the next node added to the Material. Also Reproduced in Main Promotable-CL-2541904 [Link Rem ...

Discrepancy in capsule distance to floor when crouching

When crouching is set in the CharacterMovement Component, the distance from the character capsule to the floor increases by one unit while crouching. Regression: No - Same behavior occurs in 4.16.3 ...