Unreal Engine Issues
Unreal Engine Issues
Attempting to export sequencer camera causes editor to crash on Linux
UE - Platform - Linux - Oct 26, 2016Trying to export a sequence camera on Linux causes the editor to crash. This does not occur on Windows. EDIT: Crash seems to occur when focus leaves the FileName field. ...
GAS: Initial OnRep_SpawnedAttributes from DefaultStartingData clears attribute values for already replicated ActiveGameplayEffects
UE - Gameplay - Gameplay Ability System - Oct 23, 2024Context The property 'DefaultStartingData' in AbilitySystemComponent can be configured from blueprint to spawn default attribute sets. This happens OnRegister. For runtime spawned actors like pawns ...
Failed to compile C++ Code project, for iOS/tvOS in Development, in Xcode 8.3 beta 1
UE - Platform - Mobile - Jan 31, 2017Project fails to build for iOS/tvOS due to:error: non-portable path to file errors. ...
Delta struct serialized fast arrays replicating new elements with no changelist
UE - Networking - Jun 14, 2021There is a scenario where delta struct serialized fast arrays can replicate changes that introduce additional elements to the array, but without changelists containing the new data. This needs furt ...
Certain UPROPERTY values are not updated during auto-recompile
UE - Gameplay - Blueprint - Aug 4, 2016Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...
Windows SDKs not recognized for HoloLens Development
UE - Platform - XR - Jun 5, 2023This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...
Behavior Tree (BT) services added to root nodes call the initial tick twice
UE - AI - Nov 20, 2024Behavior Tree (BT) services added to root nodes call the initial tick twice A BT Service with the setting "Call Tick on Search Start" enabled will execute the initial tick twice when added to the ro ...
NVIDIA 5080 GPU Crash when launching City Sample with DX12
UE - Graphics Features - Lumen - Apr 16, 2025UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...
Using nativized functions on buttons to spawn meshes causes assertion failure
UE - Gameplay - Blueprint - Oct 25, 2016An assertion failure is thrown when using nativized functions on an Android device. ...
Crash when using Export All or Export Selected (UE4Editor-UnrealEd.dll!ULevelExporterFBX::ExportBinary)
Tools - Sep 21, 2017Relates to [Link Removed] [Link Removed] Call stack is similar to the bugs above. Editor will crash when exporting assets from a level that is not dirtied. Another reproduction method is to selec ...