Timeline Scaling to 0,0,0 scales past 0 to negative values

UE - Gameplay - Jul 27, 2015

Scaling objects via a timeline scales past the intended value when attempting to scale to 0,0,0. Instead of ending at 0,0,0 the scale will be set to an extremely small negative value such as -.0019, ...

Crash when Applying Hole Material to Imported Tiled Landscape with World Composition

UE - LD & Modeling - Terrain - Landscape - Jun 11, 2015

A crash occurs when importing a tiled landscape, via the 'Levels' window with World Composition enabled, and applying a material to the 'Hole Material' slot. You can also re-apply a default material ...

Landscape Materials Layers Show "none" but are Still Able to Paint on Landscape

UE - LD & Modeling - Terrain - Landscape - Jun 15, 2015

Landscape material layers show "none" after generating weight blended layers in landscape paint mode. The landscape layers are painted as normal but do not show that any layer is assigned. ...

Crash when removing native root component from code after creating a Blueprint class based on the native class.

UE - Gameplay - Blueprint - Jul 27, 2015

Crash occurs when removing the native root component from code and then attempting to reopen a Blueprint Class asset that was based on the native parent class. Seems like maybe the 'AttachParent' f ...

Hot Reload not updating variables that have their values set in the constructor

UE - Foundation - Cpp Tools - Hot Reload - Feb 1, 2016

If a variable's value is being set in the construction script of a class and then that value is edited (the line itself is edited, not another setting of the variable), hot reload will not update th ...

Build Warning when HotReloading - LogUObjectGlobals:Warning: Guid is already used by

UE - Gameplay - Blueprint - Sep 12, 2016

Changing class code causes class instance placed in the viewport to produce the warning message shown below upon hot reload. Also reported that callstack occurs but does not crash the editor. The ...

Precise Click is not working correctly with Buttons

UE - Editor - UI Systems - Oct 6, 2016

A licensee reported an issue where a recent change to SButton.cpp in 4.13 causes an issue with Precise Click in multiple situations, his example being the one described in the repro steps, which is ...

Blendspace Animation Lag for Morph Targets

OLD - Anim - Sep 11, 2015

Blendspace animations of morph targets play at a slightly but noticably different rate between the 4.8 and 4.9 version of the UE4. ...

bool variables set in code do not auto-update after a hot reload

UE - Gameplay - Blueprint - Apr 6, 2015

When a bool variable is defined in code, changing the default value of the variable does not update on a hot reload This is inconsistent with other variables types that update their current value w ...

Packaging fails after changing from Dynamic to Static Nav Mesh Runtime Generation

UE - AI - Feb 8, 2016

If you package with Runtime Generation set to Dynamic and then switch to Static and attempt to repackage, the packaging will fail with the following error message.[2016.02.08-16.18.14:511][217]MainF ...