Unreal Engine Issues

Collision Viewmodes do not affect Instanced Meshes properly

Collision View modes, such as Player Collision and Visibility Collision, do not work with Instanced Static Meshes. Regression?: No This also occurred in 4.18 ...

Material editor crash in 5.0.2

Having lots of SpeedTrees loaded in/out/in with level streaming causes crash with Standalone game

Description: When using lots of static meshes placed in the scene and using level streaming to switch levels out can cause standalone game to crash while loading the map back in. For example, if you ...

Conflict between sequencer transform track and Parent Constraint from the Animation Mode breaks temporary pivot translation on any actor

Note: This affects all versions from at least UE 5.3, including mainline latest. The "Animation" Editor Mode allows creating constraints for level actors. One of these, the "Parent" constraint, con ...

Setting multiple identical actors to replicate movement will crash on PIE with multiple players

If ten or more of the same actor in a level have the "replicate movement" checkbox set to true, the editor will crash on PIE if the number of players is set to 2 (or with 1/2/3 players if dedicated ...

Editor crashes if reopened and a row is selected after moving datatablerow editor window in a csv data table

If a user moves the row editor window in a csv datatable, then saves, closes, and reopens the editor, the editor will crash if the user then attempts to select a datatable row in the csv datatable w ...

Blender FBXs import wrong number of bones which causes issues with Apex Cloth files

First of all, I'm not sure this is an issue with UE4, but I'm not familiar with Blender to rule this out. A user has reported an issue when importing a Rigged mesh from Blender it will add an addi ...

UDestructibleComponent::ApplyDamage doesn't affect root chunk if the mesh doesn't fracture.

ApplyDamage calls through to applyDamage on the apex actor, which takes the impulse and applies it to any fractured chunks. If however not enough damage is done to the component to fracture it, no i ...

Crash when spawning destructible objects in 2 player PIE

Crash Reporter link: [Link Removed] With Source Context: [Link Removed] ...

Bloom banding when exiting top of screen, doesn't affect other sides

As a blooming object (the sun in this repro case) leaves the view via the top-edge of the screen, some noticeable banding occurs. Happens in both PIE and -game. Found on: //UE4/Main CL-2991400 //U ...