Unreal Engine Issues
Unreal Engine Issues
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 ...
When using Blueprint Update Camera, New Camera FOV is taken into effect even if Return Value is false
UE - Gameplay - Oct 30, 2017In a Player Camera Manager Blueprint, when overriding the function BlueprintUpdateCamera, the New Camera FOV value takes effect regardless of whether Return Value is True or False. The New Camera Lo ...
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 ...
Can't import FBX animations
Tools - Jul 23, 2018When importing Animation FBX files into 4.20 the following error is received: "Failure to Import - Mesh contains root bone as root but animation doesn't contain the root track." The importing proce ...
Physics replication is not working correctly and clients receive different results
UE - Simulation - Physics - Aug 9, 2018Physics replication is not working properly. The replicated physics are different than what is on the server. The user who reported this issue pointed out this line as well which seems to not do any ...
Detaching part of the Visual Logger window and then closing the Visual Logger tab causes a crash
UE - Editor - UI Systems - Slate - Nov 18, 2021It seems that when a section of the Visual Logger is detached from the window as a whole and then that window is closed when docked next to the Content Browser, then the engine crashes. However, whe ...
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 ...
Packaged projects do not render in web page using Safari 10.0
UE - Platform - Mobile - Aug 9, 2016My Macbook Pro uses an Nvidia GeForce 750M and was on Safari 10.0 when this occurred. This did NOT occur on a Macbook Pro with the same card and using Safari 9.1.2. This did NOT occur on an iMac wi ...