Unreal Engine Issues

Update Oculus Audio SDK

The current version of the oculus audio SDK fails to initialize for some clients. We haven't been able to reproduce the problem internally but we're told from Oculus that updating the SDK will fix t ...

Sequencer Auto-key will incorrectly place a key for rotation if the object's rotation is not between -180 and 180

Sequencer prefers rotation to be specified between -180 and 180, while the details panels prefer between 0 and 360. When auto-key is on, sequencer will add a key that does this conversion despite th ...

Investigate intermittent crash in CacheOptimizeIndexBuffer on Editor startup on Linux

Building 4.10 from the GitHub release branch on Linux fails to open after install and instead crashes Community Suggested Fix: Switching triangle order optimization off with r.TriangleOrderOptimiza ...

UWheeledVehicleMovementComponent no longer contains an IsFalling variable

UWheeledVehicleMovementComponent no longer has an IsFalling variable. It originally inherited from UPawnMovementComponent which it gained this variable from but now inherits directly from UMovementC ...

Set Material in Blueprint Causing Crash

Using "Set Material" for a static mesh in blueprint causes a crash. Working properly in 4.19 CL# 4033788 Found in 4.20 CL# 4233996 and 4.21 CL# 4234136 This is a regression. ...

HLOD visibility state isn't cleared when changing scene

HLOD state is not cleared when moving to a scene without HLOD so primitives may read the state from the old scene and incorrectly cull objects. The safe fix is to clear the HLOD state maps when the ...

Lightmap Density Of Imported FBX Offsetting When Lighting Is Built

Lightmap density of imported fbxs will be offset when lighting is built.  Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4369336, 4.22 CL# 4433008 This is a regression  ...

Custom Stencil Not Working for Mobile

Setting a custom stencil on meshes is not working when using a mobile renderer. This is working as expected in 4.20 CL# 4369336 Found in 4.21 CL# 4541578 and 4.22 CL# 4556068 This is a regression ...

Blueprint inherited from StaticMeshActor will fail to compile if StaticMesh is NULL

Spot Lights Do Not Cast Dynamic Shadows If "Support PointLight WholeSceneShadows" is disabled

If you disable "Support PointLight WholeSceneShadows" spotlights stop casting shadows. This is working as expected in 4.20 CL# 4369336. Found in 4.21 CL# 4753647 and 4.22 CL# 4809892 This is a reg ...