Cannot successfully create a local binary build of the Engine that includes iOS

UE - Foundation - Build - Rocket (Installed Engine) - Jun 6, 2018

Attempting to create a local binary build of the Engine that includes iOS currently fails. The error message that appears ("ERROR: System.Collections.Generic.KeyNotFoundException: The given key was ...

Confusing message when attempting to connect mismatched Delegate pins

UE - Gameplay - Blueprint Editor - Aug 26, 2019

When the user attempts to connect delegate pins that don't match, they received a confusing mouse tooltip message that simply reads "Delegate is not compatible with Delegate". Suggested fix: When ...

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

UE - Graphics Features - Lumen - Jan 23, 2020

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 ...

Particle Systems Don't Play In Reopened Levels With ES 3.1 Enabled

UE - Niagara - Jan 27, 2020

Particle systems placed in levels don't play as expected on level load when using ES 3.1 Preview. Found in 4.24.1 CL#10757647 Reproduced in 4.25 Main CL#11115840 ...

[Feature Request] FloatCurves Can't Be Exported As .csv or .json

UE - Editor - Content Pipeline - Import and Export - Feb 12, 2020

You can't export FloatCurves as .csv or .json. You can reimport as .csv or .json. Found in 4.24.2 CL#10758860 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11318998 ...

"ShowFlag.InstancedFoliage 0" hides HISMC

UE - World Creation - Worldbuilding Tools - Foliage - Jul 29, 2020

Hierarchical Instanced Static Mesh components that contain no foliage are disappearing when ShowFlag.InstancedFoliage 0 is used. This was reported and tested in 4.24.3 (CL-11590370) and reproduced ...

Importing FBX file with same material slots and texture names has bugs

UE - Editor - Content Pipeline - Import and Export - Jul 31, 2020

When importing a file from Blender, UE creates the correct number of materials, but the number of textures is incorrect and is being overwritten, and not importing the correct amount. Tested and re ...

Text3d renders backwards.

UE - Rendering Architecture - RHI - Aug 10, 2020

When adding a Text3D actor (after placed as Child Component), into viewport the actor renders backward and not as expected. I was able to reproduce this issue in 4.25.3, but did not have this issue ...

Volumetric Material not compiling on Niagara Mesh Renderer

UE - Niagara - Sep 1, 2020

The Volumetric Shader seems broken when used along the Niagara Mesh Renderer. Reported and tested in version 4.25.3(CL 13942748). Tested with same result in version 4.24.3(CL 11590370). ...

Crash enabling Stochastic Rect Light with Ray Tracing

UE - Graphics Features - Lumen - Oct 13, 2020

Enabling Stochastic Rect Lights with Ray Tracing causes the project to crash. Reported and tested in version 4.26.0(CL 14419252). Tested and not found in version 4.25.3(CL 13942748).  ...