Unreal Engine Issues
Unreal Engine Issues
Invalidation panels can retain stale hittest data when caching is disabled/enabled
UE - AI Workflows - UI Systems - Slate - Aug 20, 2024Changes to the hit test grid of an invalidation panel while caching is disabled won't be respected when caching is reenabled. This can cause interactive widgets such as buttons who were set to colla ...
Dataprep crash
UE - Editor - Content Pipeline - Visual Dataprep - Apr 16, 2025This question was created in reference to: [Link Removed] Last post fixed the import crash, but it seems it added another. If we hit Execute button twice in a row by mistake we get a crash with th ...
Commandlet Exits With Code -1073741819 and Exception FPlatformMisc::RequestExitWithStatus(1, 3, WindowsPlatformCrashContext.EngineUnhandledExceptionFilter)Engine exit requested (reason: Win RequestExit; note: exit was already requested)
UE - Core - Systems - Apr 9, 2025When a commandlet is run it successfully completes but does not terminate the engine correctly. It appears that multiple requests are made to terminate the engine process these subsequent engine ter ...
Moving the file location of the Editor Startup map appears to break the reference to the startup map
Tools - Nov 10, 2016Moving the file location of the Editor Startup map appears to break the reference to the startup map. The editor fails to find the map and so does not use it for the start up map. Notes: In the ...
Switch on custom enum causes compilation errors after Hot Reload
UE - Foundation - Core - Sep 28, 2015If the project is hot reloaded while a Switch on Enum is inside of a blueprint which is switching on a custom enum, the switch will become corrupted. It changes the 'selection' pin to take a Byte pa ...
Manipulating Morph Target on Master Component distorts Slave Components
OLD - Anim - Apr 1, 2016Manipulating Morph Targets on Master Component distorts Slave Components. It makes no difference if the slave component has the morph target being manipulated in the master See attached image and ...
Dark Artifacts Appear On Meshes With "Use As Occluder" After Enabling DBuffer Decals
UE - Graphics Features - Feb 13, 2017Objects set to "us as occluder" will create dark artifacts from certain view angles. For this to occur "DBuffer Decals" need to be enabled in the project settings. The licensee has noted that addi ...
Packaging a DLC Plugin Fails with "Couldn't Update Resources" Error
UE - Foundation - Core - Cooker - Mar 14, 2017Attempting to package a plugin as DLC is failing with the following error message: Program.Main: ERROR: AutomationTool terminated with exception: System.Exception: Couldn't update resource However ...
Material Panner displays unusual behavior with timeline update
UE - Graphics Features - Jun 1, 2017A material with a panner displays unusual behavior when the value of the panner's speed it dependant on a timeline. As time spent in the project increases the speed of the material while changing va ...
Motion blur on single frames when character and camera are moving together
UE - Graphics Features - Jul 5, 2017Motion blur on single frames when character and camera are moving together. Cannot tell what is causing this. There is no pop in the character animation and the only thing I can imagine is that th ...