Unreal Engine Issues
Unreal Engine Issues
Unexpected behavior resulting from overlapping or touching physics actors when Simulate Physics is enabled through input
UE - Simulation - Physics - Sep 21, 2015Weird behavior occurs when toggling Simulate Physics on physics actors by input instead of on BeginPlay. Multiple odd behaviors are present such as touching physics actors ignoring collision. Test ...
Significant Frame Rate Decrease in Editor UI on Monitors with G-Sync Enabled
UE - Graphics Features - Feb 24, 2017A G-Sync enabled monitor running @100Hz will drop from 100FPS while working in the Viewport to 50FPS when scrolling through the Editor Menu window. A G-Sync enabled monitor running @60Hz will drop f ...
Static array based on an enum does not show the enum element names if a C-style cast is used with a space between the type being cast to and the enum
UE - Foundation - Core - Dec 21, 2018A static array based on an enum does not display the enum names in Blueprints if the size of the static array uses an explicit C-style cast with a space between the type being cast to and the enum b ...
SetStaticMesh does not replicate
UE - Networking - Jun 2, 2015Using OnRep_StaticMesh() in code or using the Set Static Mesh node does not replicate across server/client in game. ...
Enemy projectiles are traveling further then expected once project is packaged.
When playing the user's project in editor vs Packaged, there has been different results for the enemy projectiles and how they are shown on the screen. When In editor, any enemy projectile will dama ...
Using both an Atmospheric and Exponential Height Fog will cause an issue rendering Translucency-based Materials
UE - Graphics Features - Jul 10, 2014Using both an Atmospheric and Exponential Height Fog will cause an issue rendering Translucency-based Materials. (See Screenshots below) IMPACT: Cannot use both Atmospheric Fog ...
Unable to save blueprint after Hot Reload that affects the class the blueprint is based on
UE - Gameplay - Blueprint - Sep 14, 2015After hot reloading a project, if the class a blueprint is based off of was edited, the blueprint is unable to be saved due to being referenced in Engine/Transient. Project for Repro: [Link Removed ...
Changing Shadow Quality causes SingleLayerWater Materials to disappear
UE - Rendering Architecture - Materials - Nov 15, 2022Regression: Tested in UE5/Release-5.0, issue is reproduceable. This issue appears to be related to the Opacity Mask of the material, as not having an Opacity Mask does not cause the material to dis ...
Custom Enums break blueprints on hot reload
UE - Gameplay - Blueprint - Aug 3, 2015If a custom code based enum is used inside a blueprint, doing a hot reload will break the nodes by assuming they are of a type other than enum. ...
Event Dispatchers do not update references when renamed
UE - Gameplay - Blueprint - Feb 23, 2016Event Dispatchers do not update event references when renamed if the green "+" is used to add the event in the Details Pane of an actor component. Note: Event Dispatchers appear to rename normally ...