Missing info in GPU breadcrumbs and DRED logs

UE - Graphics Features - Apr 21, 2025

Some breadcrumbs and D3D12 logs are missing data which should normally be filled in e.g. Breadcrumbs: > PostProcessMaterial %dx%d Material=%s [Active]. After investigating this, there seems to be a ...

Race condition between D3D12 Buffer Defrag and View creation

UE - Rendering Architecture - RHI - Jun 11, 2024

A UDN user reported that the D3D12 resource allocator defragmentation operation races with view creation. View creation needs to be always deferred to the RHI thread. ...

StylizedRendering app fails to launch on tvOS

Docs - Samples - Aug 16, 2016

StylizedRendering app fails to start on tvOS ...

[CrashReport] UE4Editor_XAudio2!FXAudio2SoundSource::PrepareForInitialization() [xaudio2source.cpp:517]

UE - Audio - Jun 24, 2016

joseph.w - attempting to PIE in advanced vehicle blueprint templateCrash when selecting pie ...

Metal - Support 32bit index buffers

UE - Graphics Features - Apr 3, 2015

Metal is not taking the non-uniform buffer path for GPU skinning. ...

Using the "-opengl" commandline argument on a client project will trigger an Access Violation breakpoint.

UE - Graphics Features - Dec 3, 2014

Running a client in debug mode in Visual Studio with the "-opengl" commandline argument will trigger an Access Violation breakpoint. ...

UAIPerceptionStimuliSourceComponent never registers with required senses

UE - AI - Nov 6, 2015

UAIPerceptionStimuliSourceComponent::OnRegister tries to remove nulls from RegisterAsSourceForSenses but the condition in RemoveAllSwap is wrong. It should be SenseClass == nullptr instead. ...

Straighten Connection shortcut doesn't work after removing array element pin

UE - Gameplay - Blueprint - Feb 8, 2017

If an array element is removed from a make array node, using the shortcut for Straighten Connections has no effect until after the Actions menu is opened via right-click then closed. ...