Unreal Engine Issues

Material Particle SubUV Sample does not work with Tex Object

The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. ...

Volumetric lightmap cache point becomes extreme bright if the light source is accidently at the exact(or almost) location of it

UMG Retainer Box renders incorrect colors with Color Vision Deficiency enabled

When using a Retainer Box in UMG with Color Vision Deficiency enabled, the content inside the Retainer Box is rendered with incorrect colors compared to the rest of the UI. This bug is present in UE ...

Geometry Collection's Chaos Cache Static Pose Scrubbing broken in 5.6 due to Custom Renderer GeometryCollectionRootProxyRenderer

Geometry Collection's Chaos Cache Static Pose Scrubbing broken in 5.6 due to Custom Renderer GeometryCollectionRootProxyRenderer. The licensee has provided his analysis: In 5.6, when creating a Geo ...

StateTree : Crash when executing GetPropertyRef in SubTree linked via Linked Asset

A crash occurs when GetPropertyRef node is executed from a SubTree that is linked within a StateTree, which itself has been linked from a parent StateTree via a Linked Asset ** . The processing con ...

BP Debugger: Unable to inspect debug data for ForEachLoop ArrayElement, Array_Get and Break Struct output pins

Context The blueprint debugger allows you to trigger breakpoints and inspect the current state of variables, both member variables, local variables and persistent UberGraph variables. Problem The ...

Geometry Collection cluster handles leaking and causing ensures with field systems

Geometry Collection cluster handles leaking and causing ensures with field systems. The licensee has shared their analysis: We have been tracking down an assert that seems to happen occasionally wh ...

LOD glitch when using Control Rig with Import Skeleton node

In Unreal Engine 5.6 and Main, a glitch occurs when switching between LODs in a character setup that uses a Control Rig to dynamically load the skeleton hierarchy through the Import Skeleton node in ...

Cook non-determinism when serializing UObject pointers pointing to garbage

There's a cook determinism issue in the way UObject unversioned serialization handles UObject pointers pointing to garbage. Depending on GC timing, it can either be skipped (as a property matching C ...

"Detaching from existing linker" error messages when running Fixup Redirectors commandlet