Unreal Engine Issues

Fog Does Not Behave As Expected in Splitscreen

This bug seems to repro very inconsistently for me, but I've seen it affect Atmospheric Fog and Exponential Height Fog, and reproduced in 4.18.3, 4.19.2, and Main CL 4093338. I've attached Config fi ...

Crash when a nested widget is set to "Force Slow Construction Path"

Does not occur if the root widget also disables the fast path. As a result, the current workaround is to ensure that the fast construction path is also disabled on the parent widget by making sure ...

Animation Blueprint Preview Window Does Not Display the Effects of the Anim Dynamics Node

Animation Blueprint preview window does not update to displays the effects of the Anim Dynamics node. Preview updates fine in the asset's Blueprint and PIE. Still occurs when turning on "Enable L ...

Incremental Linking does not appear to work for Debug and DebugGame configurations

The bUseIncrementalLinking option does not appear to actually perform an incremental build when building for the Debug or DebugGame configurations. When a build is performed with bUseIncrementalLink ...

UUserWidget::SetPositionInViewport does not function as intended

The Set Position in Viewport node does affect UserWidgets position. It keeps it 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21  (CL - 4465720), 4.22 (CL - 44654877) ...

FObjectReplicator::ValidateAgainstState may validate against the wrong buffers

In 4.14, changes were introduced to share replicated state between objects on the server (Shadow State) this was done to allow sharing property comparisons to determine when objects needed to replic ...

Crash in FVulkanLinuxPlatform

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

Hit proxies marked as always allowed are not selectable when translucency selection is disabled.

Mobile Depth of Field Focal Region is broken (not RDG)

Result: notice that depth of field exhibits a rendering artifact (see attached screenshot). The PostProcessIntegrateDof pass is rendering to the wrong output dimensions, causing the artifact. This ...

FName diff in transaction will report all names as different if ordering is not properly maintained

All FName in transaction diff will be reported as modified if ordering isn't properly maintained making the proper uses of undo client `MatchesContext` not properly accurate ...