Unreal Engine Issues

Translucent material can't get valid custom depth RT on mobile platform and pc preview

Niagara crashes with skeletal mesh sampling in GPU system in Vulkan

Switching over to GPUCompute with Skeletal mesh surface sampling will crash in Vulkan. This does not occur with CPU sims or in D3D. When testing with D3D I would get the same Niagara compile warning ...

Crash after clicking the Build button on Linux

This crash is a regression from 4.22.3 (CL-7053642). If lighting is built by selecting "Build Lighting Only" the Editor will not crash. This does not reproduce on Windows with -vulkan. This was rep ...

GameplayAbility Blueprint's FGameplayAttribute does not retain value reference upon Compile

GameplayAttribute-type function arguments in BP-callable functions(I.E a Blueprint event graph) or nodes have their value reset on BP compilation ...

Virtual Texturing UDIM's Packing Incorrect

In Content Browser Preview asset looks correct, but when opening and using texture. Only textures A and B are used instead of A,B, and C. Found in 4.23 CL# 8386587 and 4.24 CL# 8748719 ...

Crashes when copying an array of actors that implement an interface into an array of interface references

When assigning an array of actors that implement a specific interface to an array of the specific interface the engine crashes. This doesn't happen if the actor array is put through a for each loop ...

Diffing Tool showing false positive when diff'ing identical blueprints using FText input pin

When diffing the two blueprints, the FText values are deemed different when they are the same. A workaround has been found by doing a pure string-compare for FText inside "GraphDiffControl::ArePinsD ...

LandscapeComponent generates incorrect OccluderVertices for software occlusion

OccluderVertices didn't consider the subsection's transition, so the position of the OcclusderVertices are not correct. I made a fix as follows: [Image Removed] [Image Removed] ...

Root motion with SubAnimInstance can cause notifies to not trigger.

Setting up root motion in a sub instance to RootMotionFromEverything seems to cause the sub instance to evaluate, and override the notifies of the animation that was playing, which prevents the noti ...

CharacterMovement component is not accurately reflecting the characters velocity when becoming uncontrolled during movement.

The boolean "bRunPhysicsWithNoController" has an attached note that reads: " * Normally without a Controller, movement will be aborted and velocity and acceleration are zeroed if the character is w ...