Unreal Engine Issues

Importing low key frame animations with custom attribute curves have their keys offset affecting pose asset generation

When creating a pose asset based on an animation and curves with a low number of keyframes if you switch between the pose assets poses, the curves will not be correctly timed with the animation beca ...

Color changing through material parameter collection in a emissive material will not affect lightmap baking, unless recompile the material.

Hierarchical Instance Static Mesh's array does not reorder itself correctly

When an instance is removed from a Hierarchical Instanced Static Mesh's array, if there are indices that are further along in the array that fill that index, the last index in the array is used to d ...

[CrashReport] Fatal error: Cast of nullptr to Actor failed - UE4Editor_CoreUObject!CastLogError()

This is a common crash affecting users in 4.16, and has been occurring since at least 4.14. It has affected more than 400 unique users, unfortunately they have provided little information. User Des ...

Up Ratio on the Gear Setup for Vehicle Movement Component does not work correctly

When changing Up Ratio for the Gear Setup in a Wheeled Vehicle's Vehicle Movement Component, there are some weird results. At 1.0 for Gear Setup, the gear should shift once RPM is at max but it will ...

Unable to open editor after updating to latest AMD driver

After updating to Radeon Software 17.10.3 I can no longer open the editor. This has been seen on both a R9 390X and a R9 290. If I use AMD's Auto-detect software it's recommended version is 17.7.2 ...

[MetaSounds] - Changing an Input to Modulation Parameter crashes editor due to module load order

Setting an Input type on Modulation Parameter crashes the editor with:Assertion failed: Pair != nullptr [File:E:\SMoyls_UE5_Release-5.0\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 643 ...

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP) makes Physics simulating ragdolls fly off into space.

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP - slomo sets TimeDilation) makes Physics simula ...

GetStaticMeshViewport() is called without checking if it returns a valid viewport causing the Editor to crash

This is not a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary //UE5/Release-5.0 CL18407655 Personal P4 When opening a static mesh without ...

Crash when deleting BindingOverrides if the target property is left open on the details panel

Crash if opening ALevelSequenceActor::BindingOverrides in the details panel and run a process that empties the BindingOverrides elements. Workaround: FMovieSceneObjectBindingID FMovieSceneObjectBi ...