Unreal Engine Issues
Unreal Engine Issues
Noise Material Expression is rendering outside Min and Max Range with High Position Values
UE - Graphics Features - Mar 31, 2015The Noise Material Expression is rendering values well outside the Min and Max Range set in the Expression node. Also Reproduced in Main Promotable-CL-2469752 Alerted the user to suspicions and su ...
Skeletal Meshes do not work properly on Open GL ES 3.1 on Xiaomi Redmi 6
UE - Platform - Mobile - Oct 30, 2018Skeletal meshes do not render or animate properly on the Xiaomi Redmi 6 (PowerVR GE8320) when using OpenGL ES3.1. This issue changed a bit from 4.19 to 4.20. In 4.19, the skeletal mesh seems to of ...
DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1
UE - Platform - Mobile - Mar 29, 2019DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1. Worked in 4.20, no longer works in 4.21 or 4.22. Originally reported as Oculus Quest specific, but repr ...
Externally Referenced error is produced after cloning a 4.6.1 project and converting it to a 4.7.6 project
UE - Foundation - Core - May 13, 2015A User in unable to save there project because of they get warnings for all of the objects in their scene saying they are externally referenced. This happens after cloning a project and then convert ...
A partially broken Geometry Collection ends up with garbage CollisionGroup data that can lead to strange behaviors
UE - Simulation - Physics - Destruction - Apr 27, 2025A partially broken Geometry Collection (GC) ends up with garbage CollisionGroup data that can lead to strange behaviors. The licensee has noticed that a GC that goes thru a field applying ExternalS ...
LOD Build Scale set higher than 1 will cause a merged actor to increase to that scale when created
OLD - Anim - Aug 8, 2017LOD Build Scale set higher than 1 will cause a merged actor to increase to that scale when created. It seems to be using the LOD Build Scale to double in size on actor merge. This is a regression: ...
Translucent Object not rendering correctly in Desktop Forward in left eye in a packaged game when using "r.HZBOcclusion 1"
UE - Platform - XR - May 8, 2017Object not rendering correctly in left eye in a packaged game when using "r.HZBOcclusion 1". In this example looking to the right the object disappear from the left eye only. Note: This was tested ...
Custom Render Passes in Sequencer and High Res Screenshots are rendered incorrectly in HDR with DX12 and r.PostProcessingColorFormat=1
UE - Graphics Features - Jul 16, 2019Buffer visualizations rendered in HDR through the high res screenshot tool or sequencer using DX12 and r.postprocessingcolorformat 1 will result in renders that only capture the first row of pixels. ...
The crash reporter tool does not start on Windows 8.1 machines when running the Engine built from source code.
UE - Foundation - Core - Dec 5, 2014The source code to build the Engine that is available from GitHub includes the file dbghelp.dll, which prevents the crash reporter tool from starting on Windows 8.1 machines. This file is not presen ...
[MetaSounds][Trigger Route] - If Value 0 is a non-zero value and Value 1 is a zero value, the output "pops" on triggering Set
UE - Audio - MetaSounds - Mar 18, 2022When using the Trigger Route node, if Value 0 is a non-zero value and Value 1 is a zero value, the output "pops" on set. [Link Removed] ...