Unreal Engine Issues
Unreal Engine Issues
This user's Function Library will not save
UE - Gameplay - Blueprint - Mar 6, 2015This user's Function Library will not save. Hitting save returns the following error: Can't save D:/4.7_Projects/EngineTransientBug 4.7/Content/Math.uasset: Graph is linked to private object(s) in ...
Crash when adding multiple collision types to a mesh
Tools - Jan 27, 2017Adding various collision types to a single mesh will cause it to hard crash the editor. No Crash Reporter window will open. Note that this happens with the user's mesh, but I was not able to repro ...
'Platform Stats' incorrectly display the number of Texture Calls for a material
UE - Rendering Architecture - Materials - Jul 29, 2024When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...
Hang when using Debug config with Launch On to Android
UE - Platform - Mobile - Mar 18, 2019Final bits of logging show:D/UE4 : [2019.03.18-16.36.59:236][ 0]LogInit: Display: Starting Game. D/UE4 : [2019.03.18-16.36.59:236][ 0]LogNet: Browse: /Game/FirstPersonCPP/Maps/FirstPerson ...
Post processing rendering artifacts Nexus 6
UE - Platform - Mobile - Dec 3, 2015When you push a mobile targeted project to the Nexus 6, the rendering is all sorts of wrong. When you hover over to where the items are, the screen goes black. There is also a large black or cyan sp ...
Crash when running "MAP REBUILD ALLVISIBLE" with hidden sublevels and then changing maps
UE - World Creation - Worldbuilding Tools - Sep 1, 2025Running the MAP REBUILD ALLVISIBLE editor command when the current map contains hidden sublevels causes a crash upon changing maps. The issue seems to be related to hidden sublevels being cleared in ...
Auto-weld is Enabled even if the blueprint component is set to Simulate
UE - Simulation - Physics - Jan 4, 2017Auto-weld is Enabled even if the blueprint component is set to Simulate. This only effects blueprint, static mesh actors in the world still disable Auto-weld if set to Simulate. This is a Regressio ...
Details Panel Bug - Multiple external objects of same type share expansion state
UE - Editor - Workflow Systems - Oct 5, 2023This is because expansion state is saved per class, and we are displaying multiple objects of the same class at the same type. The UniqueID we add when adding these objects via 'AddExternalObject' ...
Imported animations don't import correctly when using same import settings as skeletal mesh it's based off
UE - Editor - Content Pipeline - Datasmith - Importer - Jul 10, 2019When importing an animation using the same import settings as the imported skeletal mesh it is meant for part of the mesh is rotated 90 degrees around the root. The files that were used to verify th ...
RepNotify variables passed by reference to a function or macro that then change the value of the variable do not trigger the OnRep function on the Server
UE - Networking - Jul 1, 2015RepNotify variables passed by reference to a function or macro that then change the value of the variable do not trigger the OnRep function on the Server. This is inconsistent with the behavior with ...