Unreal Engine Issues

4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

Skip Assigning Gamepad to Player 1 does not work

This is a regression from a long while ago that needs to get fixed ...

Nativized blueprint does not support reading values from TRange structs

Compile errors will occur during packaging with Blueprint nativization enabled if e.g. "Get" nodes are placed in a Blueprint on FFloatRange struct types (or any other explicit TRange derivative) and ...

Add Substrate Material Support to Lumen Performance Overview

There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...

Automotive Materials - ClearCoat Specular Artifact with Saturation ~1

[Link Removed][Link Removed] ...

AbcImporter for Skeletal Mesh doesn't support material slot naming

Fbx importer can import valid under 30Hz anim at 30Hz

The samplerate of a track was compute with the following formula Equation 1: number of Key / animation Time This formula work only if we have animation keys that are time equidistant. example of ...

Crash when changing the number of instances in a grouped sprite component at runtime

A crash occurs when you remove a Sprite Instance within a Paper Grouped Sprite component of an Actor BP on Event Begin Play. I was able to reproduce this crash in the binary releases of 4.11.2 and ...

Occasional 1-frame UMG render data corruption on Metal

Example 1.3: Constraint Profiles animation not working in ContentExamples

This bug does not occur in //UE5/Release-5.0-EarlyAccess or in Release-4.27 making it a regression.  This also occurs in //UE5/Main  ...