Unreal Engine Issues

Nanite mesh not culled when owner is editor only actor in gameview

Nanite mesh is not culled because "DrawInGame" value in the primitive uniform buffer is always 1. Can be fixed with below modification:// in FPrimitiveSceneProxy::FPrimitiveSceneProxy DrawInGa ...

Missing materials on the rear lights and windows of library vehicles

Reported in SF [Link Removed] The rear light material and window materials on Twinmotion library vehicles are not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the foll ...

bStaticWhenNotMoveable in Lighting category instead of Physics

"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...

Comment boxes no longer allow pinning/unpinning of comment bubbles

Comment bubbles above comment boxes no longer have an option to pin/unpin comment bubbles. This functionality allowed users to choose whether or not to show the comment bubble, which was useful for ...

Masked Materials have become more expensive to use

Masked Materials have become more expensive in 4.13 and internal builds than in 4.12. Images attached for demonstration along with test map using the bush prop from starter content. Tested with ...

[CrashReport] UE4Editor-Core!static void PureCallHandler() [WindowsPlatformMisc.cpp:477]

Generated from CrashReporter Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] Pure virtual function bei ...

Engine crashes while attempting to resimulate procedural foliage volume with target layer set on landscape proxies

If a procedural foliage volume attempts to use the "target layer" feature and resimulate while encompassing a landscape proxy, the editor will crash. Frequency: 3/3 Crash Report: [Link Removed] ...

IMC incorrectly retains the state of a modifier set in a lower priority mapping context.

Destroy Component node does not work on decals

Destroy Component node does not destroy decals when called. ...

The Top Down template TopDownController has Block Input enabled by default

The Top Down template TopDownController has Block Input enabled by default. This is potentially confusing for new users not aware of this difference. Note that due to [Link Removed], testing this r ...