Unreal Engine Issues

External textures only work in pixel shaders

External textures currently only support pixel shaders, presumably because some platforms, such as Android only have pixel shader support. On other platforms this causes a regression though: For exa ...

Audit usage of StaticClass() in AssetMappingTable and AnimationAsset code

A user has pointed out that code in AssetMappingTable.cpp and AnimationAsset.cpp are using the StaticClass() method on pointers. Because StaticClass is a static method, it relies on name hiding to ...

DebugEditor checkLockFreePointerList(TLS.NumPartial >= 0 && ((!!TLS.NumPartial) == (!!TLS.PartialBundle))) fails

Occasionally, the Engine/Editor crashes on startup with an assertion in the lock-free void pointer list. ...

Possible to have a null AudioComponent in ApplySettings

User is having issues where they are getting crashes in ApplyVoiceSettings. This should only ever be called from FVoiceEngineImpl::SubmitRemoteVoiceData. In that method, if no SynthComponent is av ...

Cannot compile nativized Blueprints containing a delegate signature that includes a TMap (paired) type as a parameter.

Paired types (e.g. TMap) in a delegate signature do not compile after nativizing a Blueprint class containing it due to the macro expansion and comma inside the template spec between key and value t ...

Incorrect render target index assignment in GLSLBackend

While investigating [Link Removed], I have found that GLSLBackend always automatically generates render target location indices, regardless of user-specified ones via SV_TargetX HLSL semantics. Rel ...

FGenericPlatformMemory::OnOutOfMemory should be broadcasting GetOutOfMemoryDelegate instead of GetMemoryTrimDelegate

Game projects that rely on legacy include paths are not compatible with Blueprint nativization.

Using legacy-style #include paths in a game project is allowed by UBT by default, but it's currently not compatible with Blueprint nativization, as it does not account for this possibility. Current ...

Duplicate Physics replication call in PhysScene_PhysX.cpp

There is a duplicated block of physics replication code in PhysScene_PhysX.cpp  https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Private/PhysicsEngine/PhysScene_P ...

AccumulateCurveMetaData unnecessarily marks the package dirty

AccumulateCurveMetaData makes calls to MarkPackageDirty even when the data hasn't changed. ...