Unreal Engine Issues
Unreal Engine Issues
Particle Mesh Emitters Cause Heavy FPS Stutter
UE - Graphics Features - May 4, 2018Per User: After updating my project from 4.18 to 4.19, I started getting huge FPS drops at regular intervals. I managed to trace back the issue to particle systems with mesh emitters and could repr ...
Crash when selecting Edit Map for Paper Tile Map Actor
UE - Gameplay - Jul 12, 2017Crash when pressing the Edit Map button for the Rendering Component of the Paper Tile Map Actor. If a new empty map is created first, the crash doesn't occur. User Description: Whenever I try to c ...
Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes
UE - Graphics Features - Apr 1, 2025When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...
Landscape Tessellation shadow depth performance cost higher than expected
UE - LD & Modeling - Terrain - Landscape - Aug 23, 2016Using tessellation on Landscapes causes a greater impact in performance than what is expected. In the screenshots provided there is a comparison between tessellation disabled and flat tessellation ...
Instanced Static Mesh components update incorrectly in Standalone and Packaged game
UE - Gameplay - Aug 11, 2017Instanced Static Mesh components update incorrectly in Standalone and Packaged game. When hit, all of the instanced static mesh components will snap to a singular location instead of each individual ...
Changing the name of a variable that references a Blackboard Key inside a Task removes the Key reference inside the Task's node in the Behavior Tree
UE - Gameplay - Blueprint - Oct 5, 2015Changing the name of a variable that references a Blackboard Key inside a Task removes the Key reference inside the Task's node in the Behavior Tree. Clicking on the Behavior Tree's Task node that r ...
Composure DepthElement Not Producing A Picture
UE - Virtual Production - Rendering - Composure - Sep 21, 2020The user tried to use the composure pipeline and followed what is written in the Documentation. All the elements and nodes written out in the documentation worked as expected with the exception of t ...
Editor crash when using Straighten Connection shortcut key
UE - Gameplay - Blueprint - Feb 8, 2017Using Straighten Connections shortcut can cause the editor to crash after removing node pins. This appears to be due to GetGraphPinForMenu returning the last pin selected (in this case, the removed ...
Editor crashes when right clicking a box collision after adding a converted static mesh in blueprint editor
UE - Gameplay - Blueprint - Sep 1, 2016I created a cylinder with a subtractive cylinder inside of it. I also used a box BSP with a subtractive box inside of it and got the crash to repro. I tried with a sphere BSP twice and didn't get ...
Disabling Use Localized Graph Editor Nodes and Pins causes split struct pin names to disappear when compiling
UE - Editor - UI Systems - Localization - Oct 19, 2016If the Use Localized Graph Editor Nodes and Pins option is disabled, compiling a blueprint will cause the pin names from any split struct pins to disappear. Regression?: Yes This occurs in 4.13.1 ( ...