Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.

UE - Gameplay - Mar 23, 2018

User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...

Adding an Event Dispatcher to a Template Character Blueprint Causes Increase in Compile Time

UE - Gameplay - Blueprint - Jul 8, 2016

Adding an event dispatcher to one of the pre-created character blueprints in the template projects causes an increase in compile times. This does not occur with a blank actor or character blueprint ...

Execute while paused input action mappings do not execute when console command pause used

UE - Gameplay - Input - Jul 28, 2016

"Execute while paused" input action mappings do not trigger when using the pause console command. Workaround Use the "Set Game Paused" node, which works as expected. Regression (no) issue (does ...

Move 'Scale is not valid' warning to MessageLog to make it more noticeable.

UE - Foundation - Core - Aug 30, 2016

Memory leak when comparing scale value with 0 on transform. It appears that the memory used by the editor increases by 25-50 mbs while comparing the scale to 0. Regression (no) issue (does) occur ...

Negate Blueprint Macro Returning Original Value

UE - Gameplay - Blueprint - Sep 21, 2016

The Negate blueprint macros (NegateInt, NegateFloat) are returning the original value. Found in 4.12.5 CL 3039270. Reproduced in 4.13 CL 3106830 and 4.11.2 CL 2946394. ...

Max Angular Velocity Value Being Reset

UE - Gameplay - Jun 6, 2016

The value of Max Angular Velocity on a component is being reset after changing the value and compiling the blueprint. Found in 4.12 binary, reproduced in Main CL 2994701. Could not reproduce in 4. ...

Dbuffer Decals will flicker when

UE - Graphics Features - Mar 30, 2016

When applying a dbuffer decal to a surface with a small axis value for the decals size it will flicker. Attached gif to demonstrate. Reproducible in: 4.11 P8 CL-2916259 Dev-Main CL-2922677 ...

Skylight Indirect lighting Intensity has no effect

UE - Graphics Features - Dec 28, 2015

The Skylight actor has minimal effect on indirect lighting compared with 4.10.1 and the Indirect Lighting Intensity slider has no effect at all. Image attached for comparison bwtween 4.10.1 and 4. ...

Real-Time Collision for Spline Mesh Not Working in Packaged Game

UE - LD & Modeling - Terrain - Landscape - Feb 23, 2016

When attempting to dynamically set the collision of a Spline Mesh component, the collision settings are not kept in a packaged game. Found in 4.10.4. Reproduced in 4.11 Preview 6 and Main CL 28772 ...

D3D HUNG crash - FD3D11DynamicRHI::RHIReadSurfaceFloatData()

UE - Graphics Features - Jan 18, 2017

This is one of the widespread D3D Hung crashes that have existed since 4.14. This particular callstack has affected around 300 users. The issue has been successfully reproduced on a home PC. Dxdi ...