EarlyZPassOnlyMateriaMasking Makes Masked Materials on Particles Flicker When Close to the Camera

Tools - Cascade - Oct 12, 2018

When "r.EarlyZPassOnlyMaskedMaterials" is enabled, masked materials used with particles will flicker when close to the camera. Found in 4.17 CL# 3658906, 4.18 CL# 3832480, 4.19 CL 4033788, 4.20 CL# ...

[CrashReport] UE4Editor_RenderCore!FPendingCleanupObjects::~FPendingCleanupObjects

Rendering - Aug 21, 2018

Comments from users in crash group:I tried to launch my project  1266 FPendingCleanupObjects::~FPendingCleanupObjects() 1267 { 1268 QUICK_SCOPE_CYCLE_COUNTER(STAT_FPendingClea ...

Migrating assets to a plugin causes references to break

Tools - Content Browser - Jun 14, 2018

The migrate function is meant for moving assets from one content folder to another, so it does no actual modification of the references in the migrated assets. This is normally fine, since we expect ...

Delay nodes occasionally don't fire the "Completed" output in a nativized build.

Gameplay - Blueprint - Jun 13, 2018

This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...

Instanced Static Mesh component instances in levels that are not currently loaded do not have their defaults updated properly

Tools - Foliage - May 17, 2018

Editing the properties of an Instanced Static Mesh or Hierarchical Instanced Static Mesh does not propagate those edits to the defaults of instances that are in levels that are not currently loaded. ...

Launch URL places http:// before the given string on Android, causing some commands to fail

Platform - Mobile - May 14, 2018

Attempting to launch URLs on Android causes http:// to be placed before the string that is given. This causes issues when using commands such as mailto: and tel: which do not work properly when this ...

[CrashReport] UAIBlueprintHelperLibrary::CreateMoveToProxyObject [aiblueprinthelperlibrary.h:26]

Core - May 9, 2018

User comments in crash group:I tried making an AI run into my sidescroller characterstarting level with ai 2188 void RemoveAllSwap(const PREDICATE_CLASS& Predicate, bool bAllowShrinking = tru ...

Memory Leak when Debugging Blueprint

Rendering - May 2, 2018

RAM usage continually increases when debugger is active https://answers.unrealengine.com/questions/784443/ue-4191-memory-leak-while-using-blueprint-debugger.html ...

[CrashReport] PhysX3CommonPROFILE_x64!physx::Gu::Facet::silhouette() [guepa.cpp:319]

Physics - Apr 19, 2018

No user comments in crash group 313 void Facet::silhouette(const Ps::aos::Vec3VArg w, const Ps::aos::Vec3V* PX_RESTRICT aBuf, const Ps::aos::Vec3V* PX_RESTRICT bBuf, EdgeBuffer& edgeBuffer, ...

The nativized 'Array_Get' custom thunk implementation fails to properly initialize the item returned in the invalid index case.

Gameplay - Blueprint - Apr 19, 2018

FCustomThunkTemplates::Array_Get() fails to properly initialize a default item when the index is invalid: Item = U{}; That will leave the item uninitialized (e.g. UDS types). Should be using the ...