Unreal Engine Issues

check(PIEInstanceID != -1) fails when executing SeamlessTravel

Per https://udn.unrealengine.com/questions/349614/checkpieinstanceid-1-fails-when-executing-seamless.html ...

Can't clear AnimBp reference from an old asset(4.10 or before) with a skeletalMeshComponent

When using an older asset(4.10 or before) with a skeletalMeshComponent in a newer engine version, a reference for the original AnimBP remains after changing the mesh component's Anim Class. ...

Crash On Launch When Using Leap Motion Character

The editor is crashing on launch when the Leap Motion plugin is enabled and a leap motion character is being used. This did not occur in 4.14.3. This is a regression. ...

Collision Responses will reset to previous setting after changing the Preset Collision Profile

Collision Responses will reset to previous setting after changing the Preset Collision Profile. After the change is made and "Accept" is pressed, the Collision Responses will still have the old ch ...

Min Roughness Light Setting Does Not Work In Forward Shading

Min roughness in the light settings currently aren't working in the forward shading mode. ...

Painting on animation sequence paints on invisible T-pose skeleton

SetVectorParameterValueOnMaterials In Construction Script Not Working in Packaged Game

Set Vector Parameter Value on Materials doesn't seem to have an effect in packaged games if used in the construction script. Using it on Begin Play works as expected. This did not occur in 4.14.3. ...

Blueprint compile error can occur when trying to override a BlueprintImplementableEvent that takes a custom enum as a parameter

When a BlueprintImplementableEvent that takes a custom enum as a parameter is overridden in a Blueprint, it will throw a compile error. The compile error states that the event cannot be overridden b ...

[CrashReport] UE4Editor_Core!FWindowsWindow::Initialize() [windowswindow.cpp:199]

Error message: Assertion failed: 0 [Link Removed] [Line: 199] Window Creation Failed (1158) Source Context: 184 VirtualHeight = ClientHeight; 185 186 // We call reshape w ...

Incorrect Shading On Objects Using World Position Offset And Rotate About Axis

When using the rotate about axis node and WPO to move the vertices of an object to always face the player this seems to introduce some shading errors with any light (except skylight). ...