Unreal Engine Issues

Movement Tolerance for Spawn Per Unit Does Not Function

Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...

Enable Collision checkbox does not affect static meshes from static mesh editor when set to false

Setting the Enable Collision checkbox to false in the static mesh editor does not alter collision on static mesh objects. ...

Chaos-enabled projects will disable Post Process Volume with sphere tessellation of 4 or higher

GPU-ARM Mali 400 series phones will render an Opaque Unlit Material as black

ARM Mali 400 Series GPUs are rendering Opaque Unlit Materials as Black instead of the designated color. This is a *regression* from 4.10.2.Devices where Issue OccursDevice NameBrandBug Description ...

With Ray Tracing Enabled And The RenderDoc Plugin Enabled Shadows Don't Render Correctly On Reflective Materials

When the RenderDoc plugin is installed with raytracing enabled shadows don't render correctly. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11087956 ...

When switching versions of UE4 the folder colors do not migrate with the project

User reports when creating a project and changing the folder colors in 4.6, then opening the project in 4.7/4.7.1, the folders go back to their default color. Users have also reported this happenin ...

Behavior Tree (BT) services added to root nodes call the initial tick twice

Behavior Tree (BT) services added to root nodes call the initial tick twice A BT Service with the setting "Call Tick on Search Start" enabled will execute the initial tick twice when added to the ro ...

Crash upon taking a screenshot on Gear VR

Using the shot console command or the RequestScreenshot function to take a screenshot in Gear VR causes the app to crash. This was tested on Android-19, ETC-1 configuration, with both Developer Mode ...

Mip Gen Blur Settings affecting Mip Level 0 when setting the Maximum Texture Size

When Blurring a Texture using Mip Gen Settings and setting the LOD Bias or Maximum Texture Size, the blur gets applied to the base Mip Level 0. This behavior is contrary to how it behaves when blur ...

AI Perception Not Showing Up in Debugger

AI Perception does not seem to be showing up in the debugger. The same setup functioned as expected in 4.11.2 binary, but upon converting the project to 4.12 Preview 4 binary, no debug information w ...