Unreal Engine Issues

Hair shading emits light when Lumen is enabled

This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...

Refraction does not pass through Material Function node Correctly

CompileAllBlueprints crashing on blueprint function with a delegate input.

In some scenarios, FPropertyDelegate::SignatureFunction can point to freed memory after a garbage collection run. This appears to be more common when running the CompileAllBlueprints commandlet. ...

Bug: Replace With Notify option not fully functional

When you select multiple notifies and attempt to replace them with another notify using "Replace with Notify", it will sometimes replace other random notifies and not the ones you have selected. ...

"Filter Recursively" option in the Content Browser does not function

Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level

Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...

Changing Blueprint Interface's Const Status Doesn't Update Blueprints its Already Implemented In

Implementing an interface that contains const functions and later attempting to change these functions to be non-const does not update the status of the functions inside of the actor they are implem ...

Construct Object node can not set ExposedOnSpawn delegate

When ExposeOnSpawn is set as a meta specifier for a delegate property, binding the delegate to a function using the Construct Object node does not successfully bind the function. Workaround: Bindin ...

Ragdoll Physics do not Function Properly on a Mirrored Skeletal Mesh

Selecting the default character/skeletal mesh (or any skeletal mesh) in the viewport, right-clicking and transforming it so it mirrors on the X,Y, or Z axis will cause the physics to act erratically ...

Hot reload causes AnimBlueprint to lose functionality and crash

Casting to a character class inside of AnimBlueprint after a hot reload caused editor to crash Crash Reporter: [Link Removed] Additionally, Casts fail, breaking AnimBlueprint after a hot reload ...