Suspension CoM calculations don't update with mass.

UE - Simulation - Physics - Dec 15, 2016

UWheeledVehicleComponent calculates the Suspension settings only when the physics state is first created. When CoM is set through the editor, the vehicle is constructed with the appropriate offset ...

SAnalogSlider moves slowly when step size is large

UE - Editor - UI Systems - Slate - Mar 6, 2024

SAnalogSlider calculates FastestStepTime by multiplying the step size value by a constant, resulting in high numbers for larger step sizes. This gets lerped from 1 and used as the repeat time, resul ...

Assertion opening blueprint with HISMC created in 4.11

UE - World Creation - Worldbuilding Tools - Foliage - Jun 7, 2016

After project was upgraded to 4.12 opening a blueprint that contains Hierarchical Instanced Static Mesh component will result in a crash. From the log I this is the important part: Assertion faile ...

Fade track is not affected by "Restore State" flag

UE - Anim - Sequencer - Mar 24, 2017

Fade track is not affected by "Restore State" flag Regression: Sort of. Restore State wasn't available in 4.14, but the default behavior would leave the screen black Worked: 3249277 (4.14.3) Bro ...

Character animations do not replicate when the character is attached to another actor

UE - Networking - Feb 10, 2015

Character animations do not replicate when the character is attached to another actor. Setting the other actor to Replicate and Replicates Movement does not seem to make any difference. Reproduced ...

Spawn Emitter At Location is not available in an Object Blueprint

UE - Gameplay - Blueprint - Feb 4, 2015

Spawn Emitter At Location is no longer an available node in an Object Blueprint. It was available in 4.6.1 but is not in 4.7 or 4.8. Spawn Emitter Attached is still available in an Object BP. Teste ...

Renaming a struct variable with special characters shows no warning

UE - Gameplay - Blueprint - Sep 23, 2015

When you go to rename a struct variable, there are no warnings that indicate that you cannot use special characters, but they are immediately deleted if you try to use them in the variable name. F ...

Multiple overlapping reflection captures cause graphical artifact on Mac

UE - Graphics Features - Dec 16, 2016

There are tiled artifacts that appear on Mac Sierra when reflection captures overlap. Tested with Asset #3595 MacOS Sierra Version: 10.12.1 NVIDIA GeForce GT 750M Driver: 367.15.10.05f01 ...

Editable Text Box crashes game on iOS

UE - Platform - Mobile - Jan 12, 2015

Clicking on an Editable text box on a mobile device will causing the project to crash on the device. Tested on an iPad Air 2 (8.1) The crash does not occur on Android. Log files are from xcode ...

Axis changes when performing FBX import / export with "Force Front X Axis" enabled

UE - Editor - Content Pipeline - Import and Export - Jan 6, 2020

1. Import the attached test.FBX with "Force Front X Axis" enabled. 2. Export the imported skeletal mesh with "Force Front X Axis" enabled. (Test_export.FBX) 3. The axis does not match in test.FBX an ...