SetChildActorClass does not replicate when set to a different class

UE - Gameplay - Feb 20, 2019

When using SetChildActorClass to change a Child Actor Class, the change will replicate on the Server but not the Client. The Client will have the original Actor Class after the change happens. This ...

Crash in FVulkanLinuxPlatform

UE - Platform - Linux - Apr 17, 2019

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 ...

SceneCaptureComponent2D Anti-Aliasing not working unless Post-Processing flag is toggled OFF and back ON again

UE - Graphics Features - Aug 28, 2019

SceneCaptureComponent2D Anti-Aliasing does NOT work unless Post-Processing hidden show flag is toggled OFF and back ON again. This state persists only during Editor time. Upon restarting the Editor ...

Constraining aspect ratio of cine camera with post process material attached causes rendering issue

UE - Graphics Features - Nov 25, 2019

Applying a PP material that uses absolute world position to a cine camera using "constrain aspect ratio" causes rendering issue. Note: Changing the film back settings on the camera also results in ...

Wildcard Maps Inputs/Outputs Propogate Incorrectly in Macros

UE - Gameplay - Dec 13, 2019

When a macro takes in a Map <Wildcard, Wildcard> if the output is the element in the map it is the same type value of as the key. You can see see a quick demonstration at [Link Removed]. This seems ...

Drag and Drop Operations Don't Work Correctly When "Render on Phase" Is Enabled In a Retainer Box

UE - Editor - UI Systems - Slate - Jan 31, 2020

Drag and drop operations don't work correctly when "Render on Phase" is enabled in a retainer box. When "Render on Phase" is disabled the drag and drop operations work as expected. In 4.23.1 the dr ...

Send "Enter Key" is not working with press and release key in Web Browser plugin

Tools - Mar 3, 2020

When trying to send the Enter Key to Web Browser using the Press and Release function, it does not work. This function works with any other key that you try to send. A repro project is attached tha ...

Engine Crashes On Scene Close When An Actor Is Spawned With Templated FActorSpawnParameters

UE - Simulation - Physics - Mar 5, 2020

When an actor is spawned with Spawn Parameters that are templated the engine crashes when closing a scene. This wasn't happening when there wasn't a physics constraint on the spawned blueprint. Thi ...

Vertex Interpolator causes depth-test to fail

UE - Graphics Features - Apr 23, 2020

Vertex interpolator (semi-randomly) causes visual artifacts on meshes. This did not happen initially when using or creating this material function but started about 24 hours later but now happens st ...

Blueprint debugger: variable getter node displays wrong object's value

UE - Gameplay - Blueprint Runtime - Jul 28, 2023

After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...