Unreal Engine Issues
Unreal Engine Issues
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. ...
Alt-tabbing out of a Standalone App or packaged version of a game does not trigger LostFocus or ReceiveFocus
Tools - Sep 9, 2015If a user uses Alt-tab to change to another window, the ReceivedFocus and LostFocus functions are not called as they would usually be called when using something such as Shift+F1 or Ctrl+Esc. Note: ...
Engine crashes with AudioMixer if the sound is disabled in the system
UE - Platform - Linux - May 16, 2019Seems like failure to init SDL device is not being properly propagated and something on the higher level keeps pushing commands to the (non-existent?) audio thread. Paging also [Link Removed] and [ ...
Blueprints not marked dirty when variables in referenced actors are renamed
UE - Gameplay - Blueprint Compiler - Feb 20, 2018Blueprints using renamed variable do not indicate that they need to be recompiled. (However errors are shown on play) It is possible to not see an error if you add a variable with the same name as ...
Crash after generating HLODs for merged meshes that have all triangles culled
UE - World Creation - Worldbuilding Tools - HLOD - Jul 25, 2024Crash on Galaxy S7 devices with Mali GPU (SM-G930F / SM-G935F)
UE - Platform - Mobile - Mar 22, 2016FAnimationRuntime::BlendPosesPerBoneFilter() causes an assertive crash when Skeletal Mesh LOD is changed
UE - Anim - Runtime - Nov 1, 2023The crash occurs from "check(BoneBlendWeights.Num() == NumBones);" This crash occurs when the following conditions are met;The skeletal mesh LOD is changed.The number of bones is difference between ...
HLOD Build crashing when building nanite for mesh with 2 material having the same parameters
UE - World Creation - Worldbuilding Tools - HLOD - Dec 2, 2023From Licensee: Catching the exception with debugger allowed us to find a list of materials on the hlod mesh on which the error occured and we were then able to link it to one of our meshes causing ...
New VR-Basic level triggers Metal validation layer assertion
UE - Platform - Apple - Mar 16, 2020This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...
FLiveCodingModule::StartLiveCoding() unsafe access of FModuleManager::Get().OnModulesChanged()
UE - Foundation - Cpp Tools - Live Coding - Dec 19, 2023A user has reported a failing ensure in FMRSWRecursiveAccessDetector::AcquireWriteAccess(), a race condition that has a small chance of happening when launching the editor. FLiveCodingModule::Start ...