Unreal Engine Issues

When creating an extra return node inside of a function the return values should be duplicated across both nodes

When a user creates a second return node (Right click> "Return node") inside of a function the second return node will duplicate any return values that are added while it is in existence. ...

Texture Sample Parameters cause error when used in Make Material Attributes Material Function

When creating a Material Function for the use in a Layered material setup using the Make Material Attributes Node, you cannot use a Texture Sampler Parameter. Also Reproduced in Main Promotable-CL- ...

SetAllBodiesBelowPhysicsDisabled functionality appears to leave bodies behind that raycasts can still interact with.

From UDN We use SetAllBodiesBelowPhysicsDisabled() to disable some bodies of our Vehicle. However by drawing the disabled bodies' particles position, we found those particles stay where they disab ...

Duplicating an overridden function graph causes input/output pins to double

This is caused by the same thing that causes this: https://jira.it.epicgames.net/browse/UE-58390 FBlueprintEditorUtils::PromoteGraphFromInterfaceOverride is the cause of this behavior  ...

Lumen Software Raytracing has big lighting difference comparing to Hardware raytracing

Crash Occurs After Server Travel When a Multicast Function with Params Was Called in the Level Blueprint

When a level's blueprint contains a multicast function with a parameter, Server Traveling to that level, triggering the multicast, Server Traveling to another level and then back to the level that h ...

Attempting to add or alter custom functions in character blueprint crashes editor upon compile

Editor crashes when adding or adjusting functions within character blueprint. Frequency: 5/5 Crashreporter: N/A Note: Does not reproduce on a new character blueprint, this seems limited to a cha ...

Movable Point Lights Don't Cast Volumetric Shadows From Meshes Whose Materials Have Tesselation Enabled

Point lights don't cast volumetric shadows from meshes with materials with tessellation, even if tessellation multiplier is 0.  Found in 4.19 CL# 4033788, 4.20 CL# 4302132, 4.21 CL# 4347190 ...

Enabling "Use mouse for touch" causing the drag and drop function to only work every other click in the editor

After enabling the "Use Mouse for touch" option in project settings the drag and drop function only working every other time, when clicking and dragging. This only happens in the editor ...

A packaged game that contains a plugin with a custom struct and function using that struct will crash on launch.

If a project is packaged with a plugin that contains a custom struct and a function that takes that struct as a parameter, the game will crash when the executable is run. [Link Removed] ...