Niagara Translucency Sorting Issue with GPUCompute Sim

Rendering - Niagara - Sep 7, 2018

Niagara translucency sorting mode doesn't apply to a particle set to be GPUCompute Sim. Found in 4.20 CL# 4302132 and 4.21 CL# 4348893 ...

Unable to package with nativized functions that have a delegate-type input variable

Gameplay - Blueprint - Oct 2, 2018

Attempting to package a project that has nativization enabled for a function that takes a delegate-type variable as an input results in failure. Regression?: No This occurred in 4.19 ...

Skeletal Mesh rigid body simulation is not being updated with correct bones locations right after Skeletal Mesh is spawned

Physics - Nov 5, 2018

When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh compone ...

nDisplay - DeprojectScreenToWorld alignment is off

Tools - nDisplay - Dec 3, 2018

Using nDisplay DeprojectScreenToWorld does not have proper alignment when clicking on the screen.  [Link Removed] ...

Get Transform at Distance Along Spline does not work properly with Blueprint Nativization enabled if the Spline has multiple points

Gameplay - Blueprint - Dec 13, 2018

Using Get Transform at Distance Along Spline with a spline that has multiple points along with Blueprint Nativization causes the output of the node to become unpredictable. Regression? No This occ ...

[CrashReport] Commandlet crash in UE4Editor_CoreUObject!UPackage::Save

Core - May 2, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Pair != nullptr [Link Removed] [Line: 520] Source Context:4 ...

[CrashReport] UE4Editor_CoreUObject!UObjectBase::IsValidLowLevelFast() [uobjectbase.cpp:294]

Core - Aug 22, 2017

This is a common crash in the 4.16 and 4.17 releases. User DescriptionsWriting a custom component in C++. Hotcompiled it through VS2017. Had the BP editor open with a class derived from that compo ...

VR Motion Controllers: Haptic Feedback Effect SoundWaves

Virtual Reality - Sep 10, 2018

Attempting to play Haptic Effect SoundWaves on both Motion Controllers will cancel or interfere with each other. Tested with Oculus Also confirmed in Main 4348893 ...

Materials Added to an FBX Will Not Be Added When Reimporting

Tools - Oct 25, 2018

Adding a material to an FBX with a Multi/Sub-object material, then reimporting the FBX will not import the new material. The material element will be added to the mesh but the material applied will ...

Child actor component class does not update on the client if a class is assigned by default

Gameplay - Blueprint Runtime - Nov 21, 2018

Child Actor Components class settings does not appear to replicate as expected. When the class is changed at run time, the change is not reflected on the client. Additional note: If the class is ...