Unreal Engine Issues

Fix center of mass calculations with welding.

Welding components uses precomputed weights for to determine center of mass for the actor. This can cause problems when users want to specify custom weights for certain components. ...

Fixing up GoogleVRHMD static analysis warning

[Line 1585] d:​\build​++ue4+release-4.14+compile​\sync​\engine​\plugins​\runtime​\googlevr​\googlevrhmd​\source​\googlevrhmd​\private​\googlevrhmdrender.cpp(42) : warning C6386: Buffer overrun while ...

Fix TSR velocity extrusion on rotating

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled. To verify this, follow the steps provided in the Steps to Re ...

Niagara Position Mode Unset results in World Space rather than Local Space

When an emitter's Position Mode is Unset, the particles spawn in World Space 0,0,0. This is unexpected. If the Position Mode is Unset in 5.4, the particles remain in Local Space, which is the inten ...

Interpolators of Particle Dynamic Parameters Need "nointerpolation".

Regardless Niagara or Cascade, dynamic parameters for particles are passed to pixel shaders from vertex shaders via InterpolantsVSToPS. It can cause a precision error on some materials, for example ...

sphere collision with start and end points set to the same value return no hit objects

Sphere collision with start and end points set to the same value return no hit objects. Workaround Set the end vector to 1 away from the start vector (0,0,0 to 1,1,1, etc.) Regression (no) issue ...

Crash when moving actor on viewport with HierarchicalInstancedStaticMeshComponent.

Create ActorBP has StaticMesh is not assigned to HierarchicalInstancedStaticMeshComponent. Place this actor on the level, and bind the StaticMesh from the Detail tab and add the appropriate Instance ...

Cannot specify custom window positions in "windowed mode" for packaged games

There is an issue where you cannot specify a specific location for a windowed packaged game when using a command line to open the project, the project will move to that position for a brief moment b ...

Physics simulation shows strange behavior with specific skeletal mesh configurations

PhAT is inconsistent on when it does and doesn't apply scale to Constraint positions. This leads to cases where the positions provided create constraints that may not work when the Preview Skeletal ...