Unreal Engine Issues
Unreal Engine Issues
Alt tabbing into the Blueprint Editor while a Microsoft IME keyboard is active causes the editor to freeze
Tools - May 15, 2017If you change focus to the Blueprint Editor (Alt+tab) while a Microsoft IME keyboard is active, the editor will freeze for a short time. The duration of the freeze is dependent on the number of blue ...
FAnimUpdateRateParameters::GetInterpolationAlpha appears to be returning an invalid value for TrailMode
UE - Runtime - Animation - Aug 5, 2023It appears that FAnimUpdateRateParameters::GetInterpolationAlpha is not returning a sensible value when running in TrailMode. Currently the only variable in the calculation is EvaluationRate which ...
In-Memory replay checkpoints incorrectly deleted when stream length is less than TimeBufferHintSeconds
UE - Framework - Networking - Mar 18, 2024The buffer start time is calculated by subtracting the TimeBufferHintSeconds from the stream length: const uint32 BufferStartTimeMS = UE::LWC::FloatToIntCastChecked<uint32>(FoundReplay->StreamInfo.L ...
[Task] Automated Previous Transforms
UE - Rendering - Features - Oct 26, 2023Correct motion vectors are required for things like anti-aliasing to work. Currently ISM/HISM don't support tracking to do this automatically. This is a frequently reported problem for licensees and ...
Level Blueprint's Parent Class can be set to another Level Blueprint's generated class
UE - Gameplay - Blueprint - Sep 16, 2015You can assign the Parent Class of Level Blueprint to be the generated class of another Level Blueprint, which gives you the following "Graph is linked to object(s) in external map" error if you try ...
Threading bug in scene capture component
UE - Virtual Production - Sep 14, 2016void USceneCaptureComponent2D::CaptureSceneDeferred() { UWorld* World = GetWorld(); if (World && World->Scene && IsVisible()) { // Defer until after updates finish // Needs some CS because ...
[CrashReport] Game mode crash in UE4Game_Win32_Shipping!TStaticStateRHI
UE - Graphics Features - Feb 21, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below.Error message: Access violation - code c0000005 (fi ...
Xcode build will fail if project has a file that was added by the Editor that contains a Copyright (©) symbol
UE - Platform - Apple - Mar 27, 2017Code class files created by the Editor that include the Copyright symbol (©) are created with UTF-16 encoding. This encoding is not supported by Xcode on Mac, and will result in a build failure. In ...
Editor crashes when assigning Landscape layer info while Forward Shading is enabled
UE - LD & Modeling - Terrain - Landscape - Nov 7, 2017Crash occurs when Forward Shading is enabled in Forward Rendering Options User noted that if "Support Stationary Skylight" in Project Settings > Rendering > Shader Permutation Reduction is disabled ...
Global illumination Postprocess settings doesn't affect Reflection on Mobile
UE - Platform - Mobile - Jul 29, 2019Postprocess GI related settings look like working in 4.22 on Mobile now, but seems buggy, Not sure if it has supposed to be supported on Mobile since it has no any info in Doc or 4.22's release note ...