Unreal Engine Issues
Unreal Engine Issues
FBX material IDs from 3DS Max are reordered in automatic LOD generation
Tools - Sep 12, 2018This appears to be a UE4 bug in the way it handles the importing of FBX Material IDs from 3DS Max exports.Max uses set Mat IDs to organize multiple materials on a single object.UE4 correctly handles t ...
Crash: Landscape Materials Missing on Shipping and Development Packaged Builds
UE - Foundation - Core - Sep 9, 2019When running a packaged build of a project with a level with a landscape that has a material assigned it will crash (shipping build) or not retain the assigned material (development build). There i ...
Sky Lights don't effect Translucent materials
UE - Rendering Architecture - Materials - Nov 21, 2022Regression: Tested in UE5/Release-5.0, this issue does not occur so it is a regression Appears to be an issue with Lumen and Skylights with Cubemaps. Directional lights, point lights, etc. all work ...
Landscape nanite height mismatch
UE - Graphics Tools - Terrain - Landscape - Oct 17, 2023From licensee: The height of Nanite rendered landscape does not match the height of non-nanite landscape. The error gets worse if you increase the Z Scale of the landscape actor. Our project rec ...
First Person Primitive
UE - Graphics Features - Feb 20, 2025First Person Scale and First Person Field of View on camera components do not apply to the depth prepass when rendering First Person View meshes, leading to a mismatch between the depth pre-pass and ...
Engine Freezes Compiling Fmod Material
UE - Graphics Features - Jun 25, 2015When Saving the Material shown below, the engine will freeze at 50%, no crash is generated but engine stays unresponsive (tested for 60 mins) and must be terminated via Windows Task Manager. [Image ...
UMG widgets aren't cleared when levels are swapped via 'open LevelName'.
UE - Editor - UI Systems - Oct 30, 2014If a level has UMG widgets, swapping to other levels (including the level you're already on) doesn't clear away the UMG widgets. ...
Holding Right mouse button to scroll a scroll box appears to be much slower
UE - Editor - UI Systems - Slate - Aug 17, 2016Holding Right mouse button to scroll a scroll box appears to be much slower than it did in previous versions of the engine. The user must move their mouse many times further to scroll to the bottom ...
Broken assignation of materials when merging meshes
UE - LD & Modeling - Modeling Tools - Mesh Editing - Jul 18, 2019See the following UDN for a good visual explanation of the bug: https://udn.unrealengine.com/questions/512811/view.html Seems like this was introduced around CL 5639656. ...
Draw Material to Render Target renders black in Standalone
UE - Graphics Features - Sep 28, 2016The 'Draw Material to Render Target' in blueprints renders black when launched in Standalone. This is not the case when using the same blueprint and running PIE. The interesting thing about this is ...