Unreal Engine Issues

[Metal-Epic:Tools] Compiling Metal 2.0 shaders on XCode 9.3 beta with desktop forward selected fails on iOS

Shaders fail to compile with a series of cube map errors (subset below): LogShaderCompilers: Warning: 17 Shader compiler errors compiling global shaders for platform SF_METAL_MRT:   LogShaderComp ...

Regression: "Object Position" node in Light Function materials did not compile up to UE 5.0. Starting with 5.1, it compiles but outputs garbage values

Up to UE 5.0, when the "Object Position" node is used in the Material Editor as part of a material with Light Function domain, attempting to compile the material results in the following error: "[SM ...

Unable to compile script plugins against 4.16.0

A bug in UBT is preventing the authors of SkookumScript from submitting their 4.16 plugin to the marketplace. ...

[GPU Lightmass] bake artifact w/ two actors of same static mesh

As per a bug report from Pixomondo: if there are two static meshes in the scene and one has a rotation, it gets a GPULM bake artifact as if it is intersecting with the unrotated version of itself. S ...

Sequencer crashes when scrubbing characters with sub-anim instances and montage slots

I saw a following assertion. Assertion failed: (AdditivePoses.Num() > 0) || (NonAdditivePoses.Num() > 0) [Link Removed] [Line: 1381] This is my quick fix// code placeholder void FAnimInstance ...

Packaging with Nativize Blueprint Assets Causes Uninitialized Defaults

If you use "Set Array Elem" on a vector array but leave "Item" at the default value of (0,0,0) then you'll end up using a temporary uninitialised vector instead of (0,0,0) when it's nativized. Work ...

Post processing bloom threshold activates when the threshold is >0 instead of >-1.

Sequencer frame range progression is not continuous

The end of the level visibility section places a DeterminismFence. This causes the issue. The fence clips the frame range and produces a discontinuous frame ranges, e.g. 23201~24000, then 24001~24 ...

[CrashReport] Mac crash - libobjc.A.dylib!objc_retain() [UnknownFile]

This is a longstanding but low frequency Mac crash. User DescriptionsChanging camera shake values and testing in a new editor window Callstack from Log[2017.11.09-19.23.22:392][ 63]LogMaterial: Mi ...

New Visibility Track creates an offset Visible(0) track in Sequencer

The new Level Visibility track creates a Visible track that appears that it is created in the middle of the sequencer tracks. You are able to move the Visible track up flush with the timeline by cl ...