Unreal Engine Issues
Unreal Engine Issues
The IOS Third Party library Bolts has an incorrect file name in its Build.cs file
UE - Platform - Mobile - Dec 11, 2015The Bolts library is not correctly linked in its Build.cs file. The Build.cs file contains the following line with an incorrect file name: PublicAdditionalShadowFiles.Add(LibDir + "/Bolts.a"); The ...
Out of date info and typo in comments for DDC in BaseEngine.ini
UE - Foundation - Core - Jan 25, 2017In BaseEngine.ini,Comment says "DerivedDataBackendGraph is the default graph" - this information needs to be updated to mention that launcher installs of the engine would use "InstalledDerivedDataB ...
RawDataCurve is still saved in cooked builds even though it isn't needed
OLD - Anim - Oct 27, 2016RawDataCurve is still saved in cooked builds even though it isn't needed ...
Failed check() when placing large numbers in to a From Seconds node and print them to the screen
UE - Gameplay - Blueprint - Apr 10, 2017Crash when placing a number >= 922337181697 in to a From Seconds node and print them to the screen ...
LOD distance does not match between StaticMesh and SkeletalMesh
UE - Rendering - Architecture - RHI - Nov 26, 2019Allow UPL to use tools schema
UE - Platform - Mobile - Jan 5, 2023Allow UPL to use tools schema Allow "build" as part of Android project names ...
Proejcts with vr.InstancedStereo=true crash on Mac
UE - Platform - XR - Jan 12, 2023Sounds like neither Multiviewport nor View Instancing (MMV) is not supported on Mac atm, and the logic in StereoAspects asserts. See attached log from a partner. ...
Nanite can assert in ValidateFixupChunk: 'Assertion failed: HierarchyNodeIndex < Resources.NumHierarchyNodes'
UE - Graphics Features - Nanite - Aug 29, 2024Reported by a licensee. More discussion in the linked UDN case. "Sometimes the WorldPartitionBuilderCommandlet will fail after encountering this error:" Error: Assertion failed: HierarchyNodeIndex ...
If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible
UE - Virtual Production - Tools - Jul 31, 2025If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible. The behavior only shows after d ...
The LightMixer window is making all scene lights visible once you toggle the visibility of a single light
UE - Virtual Production - Tools - Jul 31, 2025The LightMixer window is making all scene lights visible once you toggle a single light as visible. Any light source (except SkyLight) will be turn visible once a single light is made visible using ...