Editor windows that contain viewports cause large framerate loss

UE - Graphics Features - Feb 7, 2017

When editor windows are opened that contain a viewport of some sort, the framerate of the engine drops drastically. Examples include the Blueprint Editor, Material Editor, and Persona. The viewport ...

SSL certificates for HTTPS are not properly verified on Windows

UE - Online - Feb 7, 2017

A user has reported that, due to a change that was made back before 4.12, SSL certificates for HTTPS are not verified correctly when building on Windows. This is due to the change requiring a bundle ...

[CrashReport] UE4Editor_LevelEditor!FLevelEditorActionCallbacks::Paste_CanExecute() [leveleditoractions.cpp:1602]

UE - Gameplay - Blueprint - Jan 17, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: GEditor->GetSele ...

Rotating a static mesh makes it slightly smaller

UE - Gameplay - Jan 11, 2017

If a static mesh is rotated 180 degrees, it is made slightly smaller than it usually is. There are some other degrees that can give the same effect without the shrinking, such as 540. Regression?: ...

Disabling "Should Be Visible" On a Streaming Level Resets Variable Values

UE - Gameplay - Jan 6, 2017

When disabling "Should be Visible" of a stream level and then enabling it again, the values of variables in a Blueprint that has been placed in a stream level maintain their value in PIE but reset t ...

[CrashReport] D3D 'Hung' crash - FD3D11DynamicRHI::ReadSurfaceDataNoMSAARaw

UE - Graphics Features - Jan 4, 2017

This is a frequent D3D Hung crash, similar to [Link Removed] and [Link Removed]. A potential fix for the other crashes was released in 4.14.2, but this crash is still occurring on that release. ...

[CrashReport] UE4Editor_Renderer!FBatchingSPDI::DrawMesh() [primitivesceneinfo.cpp:47]

UE - Graphics Features - Jan 3, 2017

Error message: Assertion failed: Mesh.VertexFactory->IsInitialized() [Link Removed] [Line: 45] Source Context: 32 // Keep a reference to the hit proxy from the FPrimitiveSceneInfo, to ensu ...

Undocked Windows with a hidden tab cannot be unhidden, moved, or docked any longer.

Tools - Dec 16, 2016

Any undocked windows that have their tab hidden cannot be unhidden and the window cannot be moved. This is problematic because one this is done even if you close the window and reopen it via the Win ...

FBodyInstance SetCollisionEnabled not properly checking physics state.

UE - Simulation - Physics - Dec 12, 2016

FBodyInstance::SetCollisionEnabled uses an incomplete conditional to determine whether or not it's in a Simulating or Non-Simulating state. This can cause cases where RecreatePhysicsState doesn't pr ...

Exponential Height Fog renders incorrectly after Set World Origin Location

UE - Graphics Features - Dec 12, 2016

When having an Exponential Height Fog actor far away from origin, after doing Set World Origin Location, Exponential Height Fog's appearance changes. ...