Vehicle physics are resolving erratically and causing random jitter/flips in the Advanced Vehicle Template

UE - Simulation - Physics - Nov 16, 2016

When a vehicle is on an uneven surface, the physics that are handling where the wheels should be placed is resolving sporadically, causing noticeable jitters and sometimes flipping. Regression?: Ye ...

Widget Component Does Not Cast Shadows From Certain Lights

UE - Editor - UI Systems - Oct 19, 2016

The widget component acts differently under different lighting types. For example it will cast a shadow if being lit by a directional light but won't otherwise. It also seems point lights affect t ...

[CrashReport] UE4Editor_TextureFormatDXT!__delayLoadHelper2() [delayhlp.cpp:323]

UE - Graphics Features - Nov 3, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Unknown exception - code c06d007e (first/second chance not available) Source ...

[CrashReport] UE4Editor-Core.dylib!FThreadStats::FThreadStats()

UE - Graphics Features - Nov 17, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: SEGV_MAPERR at 0x0 Source Context:N/A Most recent user affected CL: 3195953 ...

Material Instance color applied as Blendable gets overridden by Master Material's color

UE - Graphics Features - Jul 6, 2016

When applying a Post Process Material Instance as a blendable element in a Post Process Volume with the blend radius set higher than 0, the post process will blend the Master Material's inputs with ...

Dbuffer Normals Incorrect In Forward Rendering

UE - Graphics Features - Apr 17, 2017

After enabling forward shading materials with their decal response set to "normal" have incorrect shading. In the example project there are many pointlights and their specular highlight doesn't disp ...

When move selected foliage to level, Foliage can not move to level.

UE - World Creation - Worldbuilding Tools - Foliage - Jul 18, 2017

With 4.15, I can move Foliage to "Sublevel B", but I can not move it with 4.16. It seems to be affected by the update in 4.16 (New: When moving a foliage asset to a new level, you will now be prompt ...

Root Motion interpolation is incorrect when use URO

UE - Anim - Runtime - Aug 3, 2018

According to Licensee's report, Root motion is incorrect when use URO. I Investigated, in the case of "Montages Only" become TrailMode in URO. Normally Animation Interpolation has implementation, ...

Solidworks 2018 Virtual Parts aren't imported

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 22, 2018

When importing a Solidworks 2018 CAD assembly, if the part in the assembly is a virtual part (denoted by brackets in the feature tree), a part that exists only within the assembly, the part and rela ...

DataSmith importer is setting incorrect scale on Actors

OLD - Enterprise - Nov 16, 2018

When importing, DataSmith is assigning a scale on the actors, the option to set the import scale is no longer available in 4.21. ie: a 36" item comes in at 96" This was reported and tested in 4.21 ...