Unreal Engine Issues

Projects that use plugins located outside of either the Engine or Project directories cannot be deployed.

Trying to deploy a project that uses an external plugin (not located in either Engine/Plugins or Project/Plugins) will fail. The error message states that it is looking for the plugin to be located ...

Cloth environment collisions with APEX clothing is not thread safe.

This looks like a thread safety bug that's been in the clothing system for a very long time. Essentially a skeletal mesh component does a transform update and attempts to update the collisions of a ...

ScreenAlignedUV doesn't work correctly on some mobile devices chipsets

Using ScreensAlignedUVs material node on some devices does not render correctly at farther distances. Devices tested with: Working: iOS 5s and Pro Working: S7 Edge - SM-g935P Working: LG G4S - ...

Piloting character actor with camera not working properly

When using the pilot function a character actor with a camera actor cannot move around properly. This issue may be due to something with the LevelEditorViewport.cpp UpdateViewForLockedActor function ...

[CrashReport] Crash on Mac related to cooking for Android - libstdc++.6.dylib!std::_Rb_tree_rotate_left()

This is a common crash on Mac that has occurred since at least 4.12.5. It seems to occur during converting textures while cooking for Android. Callstack from LogLogCook:Display: Cooking /Engine/En ...

Editor crashes on Mac when launching with the command -MacExplicitRenderer=0

Trying to launch the editor with the command -MacExplicitRenderer=0 causes a crash. At the time of the crash, the following line appears in the log:LogMac:Error: appError called: Assertion failed: A ...

Vulkan crashes on Adreno Galaxy S7

[CrashReport] UE4Editor_Renderer!TStaticMeshDrawList<TBasePassDrawingPolicy<FUniformLightMapPolicy> >::GetUsedPrimitivesBasedOnMaterials() [staticmeshdrawlist.inl:868]

This Jira was entered due to a high number of occurrences in 4.11 Preview 5. Error message: Assertion failed: !Proxy->IsDeleted() [Link Removed] [Line: 867] Source Context: 853 { 854 ...

Crash after clearing the animation from a sample point in a 1D Blendspace

Regression: YES, sort of. The ability to change the animation from a dropdown didn't exist in 4.14 Error message: Fatal error: [Link Removed] [Line: 160] Ran out of memory allocating 51539607528 ...

[CrashReport] UE4Editor_Engine!FLevelCollection::RemoveLevel() [world.cpp:249]

This is a common crash that has occurred since at least 4.14 User DescriptionsWas playing in editor and ran around my world composition level a little bit and then hit escape to quit.Using the node ...