Crazy camera when zooming in/out the Sequencer

UE - Anim - Sequencer - Mar 22, 2024

If you add Static Mesh (cube) in this Level Sequence and click on it in Sequencer, you can observe the Spline Path that the cube is following is changing its shape when keys in Sequencer are zoomed ...

Visual Studio outputs ? symbols in place of Cyrillic for some messages related to UBT when compiling engine source

UE - Foundation - Cpp Tools - UnrealBuildTool - Apr 25, 2016

An answerhub user reported a problem with compiling source on a Russian version of windows where messages related to UBT will output ? symbols in the place of Cyrillic characters in Visual Studio's ...

Startup Movies don't play on Oculus

UE - Platform - XR - Apr 26, 2017

Startup movies don't seem to play on OculusLoading ShooterGame on 4.15 in a standalone game from the command line plays the intro movie audio, but I just get a black screen forever and it fails to l ...

Wake/Sleep events are not properly handled with Welding

UE - Simulation - Physics - Nov 25, 2019

Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...

New C++ Class (actor) fails to build

UE - Foundation - Cpp Tools - Mar 8, 2022

While trying to create a C++ actor to test if it can be created with a custom Copyright notice specified in Project Settings, the Live Coding window returns a "Build failed" and error of: "ERROR: U ...

Missing Triangles on scaled MetaHuman assets with Nanite enabled

UE - Graphics Features - Nanite - Feb 19, 2025

Additional information: only happens when all three conditions are true: the camera is very close to the character, the MH is Nanite, and a scaled mocap animation is appliedmaterial is opaque, shows ...

When using Set Master Pose Component, crash occurs when target has cloth

OLD - Anim - May 18, 2017

Description: Appears directly related to using Set Master Pose Component when the target component has cloth Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Lin ...

Triggering a HotReload Compile when Start up is Manual can result in an Editor crash: Assertion failed: GIsHotReload, Trying to recreate class outside of hot reload!

UE - Foundation - Cpp Tools - Hot Reload - Jun 30, 2019

Torrigered when hotreload is performed in a case where code referencing to dll. Crash when restarting from VisualStudio. It didn’t see in 4.21. Workaround:   Delete the Intermediate folder and e ...

Failing to compile global shaders with OpenGL4 enabled

UE - Rendering Architecture - RHI - Oct 13, 2020

OpenGL is supported but deprecated in 4.26 OpenGL4 is deprecated, you can comment this back in to add it to your targeted RHI list If you comment this back out you can package for Linux without an i ...

[CrashReport] UE4Editor_ClothingSystemRuntime!FClothingSimulationNv::UpdateLod() [clothingsimulationnv.cpp:801]

UE - Simulation - Physics - Character - Apr 26, 2017

This is an early trending crash coming out of the 4.16 Preview. This has also been experienced internally on an internal project ([Link Removed]) User descriptionsCreate new cloth asset > Apply ne ...