Unreal Engine Issues

Copy/Pasting static meshes from the level into a blueprint doesn't work

It's likely that this bug has been around for quite a while. The user reports that the issue could possibly be in FCustomizableTextObjectFactory::ProcessBuffer, but this seems more like it could be ...

Material Instance used textures list shows sample textures used as Input Preview Textures within Material Functions

Legacy Input mappings and Gameplay Debug Mappings cannot "consume" Enhanced Input actions

Combo triggers do not fire the "Completed" event

Improper Initialization of trigger values when added at runtime with the key pressed already

See the comment on UInputTrigger::LastValue around issues being a bool type on first tick ...

ParticlePosition doesn't use Previous values

FHLSLMaterialTranslator::ParticlePosition does not return Previous information when request which can result in bad motion vector calculation. ...

CharacterMovementComponent: simulated proxy can go into falling due to linear velocity quantization when using custom gravity

The character movement component in  void UCharacterMovementComponent::SimulateMovement(float DeltaSeconds) evaluates whether to find the floor when simulating the movement of the simulated proxy ...

Transform Origin Scale on the Level Sequencce Actor's Instance Data can affect rotations

Scale is used as part of the rotation calculation for transform multiplication, and it can have an effect in the sequence transform origins. It's expected that scale is completely ignored, and shou ...

Painted foliage in a level instance can be selected in Foliage mode if the level instance is in main level, and foliage is duplicated if moved.

Context Foliage Mode is a set of tools that enables you to quickly paint or erase sets of Static Meshes or Actor Foliage. Level Instancing is a level-based workflow designed to improve and streamlin ...

Selecting a brush surface that is flush with other brush surfaces selects all of them after Building Geometry

This issue was reported by internal UT developers. When selecting the surface of a brush that share flush surfaces with other brushes, all surfaces are selected. This seems to only occur after sel ...