Unreal Engine Issues
Unreal Engine Issues
GPU specific issue with Lighting while moving - GTX 770
UE - Graphics Features - Apr 26, 2017While testing GPU - ContentExamples - Lighting - Nvidia gtx 770 in the 4.16 GPU Compat Pass, I noticed a strange effect on lights while the player is in motion. I've had multiple people attempt to ...
Changing foliage quality during runtime crashes editor/game
UE - World Creation - Worldbuilding Tools - Foliage - Oct 25, 2017Editor will crash if a foliage type has Enable Scaling Density checked and user changes Engine Scalability Setting for Foliage during Runtime. Alternatively, if Foliage Quality is changed using a B ...
Applying Clothing Data Causes Mesh Vertex Color to Turn Black (or crash)
OLD - Anim - Jan 3, 2018-When a clothing asset is applied to the mesh, the vertex color(s) change to solid black -Can be removed by right click Remove Clothing Data -Crashes in Main-4.20 -Can't be tested in 4.17.2 due t ...
Custom Collision Preset Settings Not Saving on Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jun 25, 2018Custom collision presets will not be saved properly to foliage after closing and reopening the project. Additionally if you make changes to any collision preset in project settings, the foliage will ...
BuildCookRun fails to package if the -build parameter is used and debug symbols have not been installed in the binary Engine
UE - Foundation - Cpp Tools - Jul 27, 2018Attempting to package a code project using BuildCookRun does not complete the package process successfully if the -build parameter is included. With the -build parameter included, the process fails ...
AShooterGame_FreeForAll::DetermineMatchWinner is set up in a way that it will never provide any functionality
Docs - Samples - Sep 27, 2018The AShooterGame_FreeForAll::DetermineMatchWinner function is set up to compare each player's PlayerScore with the BestScore variable to see which players are considered to be the "BestPlayer" which ...
All ELinearConstraintMotion pins in BP reset to "Free" when converting a project to 4.26
UE - Simulation - Physics - Feb 24, 2021When using any of the Set Linear Limit nodes (X/Y/Z) and converting a project from a previous version of the engine, the nodes get their Constraint Type value reset to Free. I tested this with proje ...
Game View renders Lights with Actor Hidden In Game enabled
UE - Graphics Features - Dec 6, 2022This is not a regression. Tested in both 4.27.2 and //UE5/Release-5.0 CL20979098 Game View renders Lights with Actor Hidden In Game enabled. Documentation states: "...the Viewport to display the sc ...
Spherecast against complex geometry is returning odd results
UE - Simulation - Physics - Sep 19, 2023Turning on batching of sphere casts when colliding against complex gives incorrect results. Affects debug output and vehicle wheels and body movement. The issue is with the batch query mode which ...
Local Exposure can cause large variations in PreExposure under certain conditions
UE - Graphics Features - Sep 16, 2025PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...