Unreal Engine Issues
Unreal Engine Issues
Surface Material's AO will show through a Decal when static lighting is disabled
UE - Rendering Architecture - Materials - May 31, 2023A surface's Ambient Occlusion will appear through a decal when static lighting is disabled in project settings. Regression tested against //UE5/Release-5.0 CL 20979098 //UE5/Release-5.1 CL 23901901 ...
Skeletal Meshes with Physics assets with less than 5 bodies will not use flag for Start Awake
UE - Simulation - Physics - Dec 8, 2015When using a Physics Asset with 4 or less physics bodies the flag for Start Awake cannot be disabled, even if unchecked, when Simulate Physics is set to true. I've attached a project with assets f ...
check(PIEInstanceID != -1) fails when executing SeamlessTravel
UE - Gameplay - Mar 2, 2017Per https://udn.unrealengine.com/questions/349614/checkpieinstanceid-1-fails-when-executing-seamless.html ...
Animation retargeting adversely affects looping animations
OLD - Anim - Nov 21, 2014Retargeting a skeleton to a looping animation results in the animation skipping at the end of the loop (Appears to miss 1 or 2 frames.) ...
Linux Native Toolchain depends on libninfo5 which is not bundled
UE - Platform - Linux - Sep 6, 2019libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fc27cf4d000) bschaefer@bschaefer-Precision-T7600:bin$ ldd ./clang linux-vdso.so.1 => (0x00007ffceefe3000) libpthread.so.0 => /lib/ ...
Biquad Filter is incorrect when bandpass is 1.0
UE - Audio - Signal Processing - Aug 20, 2024The bandwidth on the biquad loepass filter is cutting frequencies well below 20kHz when the bandwidth is 1.0. Slack convo: [Link Removed] Visualization:[Image Removed] ...
Getting the Outer (GetOuter()) inside AssetUserData::PostEditChangeOwner added to an instanced actor in a level returns the Outer marked with "Trash"
UE - Framework - Nov 20, 2024When you call GetOuter() inside AssetUserData::PostEditChangeOwner, the Outer that is returned, is marked as "Trash". This is because the object is constructed again when an AssetUserData is added. ...
Physics Constraint Component loss of accuracy
UE - Simulation - Physics - Mar 6, 2025Physics Constraint Component has lost accuracy between Unreal versions 5.2 and 5.4 (and up). When measuring the exact distance between rigid bodies constrained by a Physics Constraint Component, the ...
NavArea blueprints in Develops folders appear to have no affect
UE - AI - Nov 6, 2015If the user creates two NavArea Blueprints (one in the content folder and the other in a developer folder) if one is inside of a developer folder then it will appear to have no affect when it comes ...
FString.Mid doesn't react appropriately when given negative values for the Count variable
UE - Foundation - Core - Jul 16, 2015If you use a 5 character string (hello) to call the Mid function and provide 0 for start, -1 for count, it'll give you the entire string. This should either return an assert or treat all negatives a ...