Unreal Engine Issues
Unreal Engine Issues
BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.
UE - Gameplay - Blueprint - Apr 20, 2017Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...
[CrashReport] Ongoing CollectGarbageInternal() assertion in 4.17
Tools - Aug 22, 2017This callstack is occurring in 4.17.0 and 4.17.1, and appears to be a continuation of [Link Removed], which was fixed in 4.16.2 with CL 3502786. I'm not re-opening [Link Removed] because there are ...
iPadPro2 Splash Screen distortion on app Launch
UE - Platform - Mobile - May 7, 2018iPadPro2 splash screen distorted on app launch. Looks like there is a fix for this in FN branch that can be brought over. Engine/Source/Runtime/ApplicationCore/Private/IOS/IOSAppDelegate.cpp http ...
Animations don't update on the first frame of shots
UE - Anim - Sequencer - Jul 11, 2018Looks like this only happens for shots. I think this is because the tick prerequisites get set up on the frame of evaluation, and the skeletal mesh component doesn't get ticked until the next frame. ...
FTransform(ENoInit) ensures in Debug on mobile platforms
UE - Foundation - Core - Sep 25, 2018As of 4.20, ENABLE_NAN_DIAGNOSTIC is now enabled in all Debug configurations. However, this does not work well with the TransformNonVectorized that is used on platforms like android. If this combina ...
Movement Tolerance for Spawn Per Unit Does Not Function
UE - Niagara - Oct 19, 2018Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...
Navigation obstacles remain when turning off bCanEverAffectNavigation in Blueprint actor
UE - AI - Nov 30, 2018Editing the bCanEverAffectNavigation flag on an Actor Blueprint is propagating the value of the property to the Blueprint instance, but fails to properly update the navmesh according to the new valu ...
Navigation Mesh ignores Hierarchical Instanced Static Meshes using "Build Paths" or the "Build" Button
UE - AI - Feb 1, 2019Hierarchical Instanced Static Meshes are partially ignored after building the navigation mesh. This is causing the navmesh to be generated within all or part the HISM instead of around it. This ...
Landscape Far Shadows Interfere With Distance Field Soft Shadows
UE - Graphics Features - Mar 5, 2019Landscape far shadows are interfering with the distance field soft shadows causing a conflict, and stopping the distance field soft shadows from rendering at all. Working as expected in 4.20 CL# 43 ...
Actor to Track gets broken on Sequence saving when a keyframe is added
UE - Anim - Sequencer - Apr 2, 2019When using Actor to Lookat and adding a keyframe to the track, the references are lost to the selected Actor when saving the Sequence. This prevents the Sequence from being saved and generates a few ...