Unreal Engine Issues
Unreal Engine Issues
Sprites don't initialize PixelsPerUnrealUnit in cooked builds, causing invalid values for GetSocketLocation, etc... for assets that have Pixels/uu of 2.56
UE - Gameplay - Paper2D - Jan 20, 2015In this user's project, playing in Launched or Packaged games causes the Get Socket Location to return an unusual report when used during a flipbook animation. Instead of a normal vector, the Print ...
Levels will not Move With Containing Folder That is Moved to Another Folder in the Content Browser
UE - Editor - Content Pipeline - Content Browser - Feb 17, 2017When attempting to move a folder 1 that contains a level/map to another folder 2, a duplicate of the folder 1 containing the level will be generated in folder 2 while the level and original containi ...
Lighting Channels Do Not Function with 78+ Lights on Actor
UE - Graphics Features - Oct 20, 2017Lighting channels do not function when the number of lights affecting actors is 79 or higher. Any number of lights that is 78 or fewer will honor lighting channel assignments. ...
Setting multiple identical actors to replicate movement will crash on PIE with multiple players
UE - Networking - Jan 28, 2015If ten or more of the same actor in a level have the "replicate movement" checkbox set to true, the editor will crash on PIE if the number of players is set to 2 (or with 1/2/3 players if dedicated ...
Editor crash when adding mesh renderer elements in Niagara
UE - Niagara - Jul 8, 2025When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...
When importing multiple meshes at once and change the Uniform Scale meshes import at different sizes
UE - Editor - Content Pipeline - Import and Export - Sep 21, 2017When a large quantity (about 50 in this case) are imported simultaneously, and the Import Uniform Scale is changed to any other number besides 1, random meshes differ in size. This happens regardles ...
Trying to chord two buttons already mapped to actions to fire a third action when both are actuated fails.
UE - Gameplay - Input - Apr 14, 2022We're aiming to set up LT - action 1, RT - action 2, LT + RT - action 3 here. I don't think this is supported via chording at present. You'd need to handle it manually (probably via adding/removing ...
Emissive material lighting falloff regression in GPU Lightmass
UE - Graphics Features - Sep 12, 2023Forum user noted that emissive lighting being built with GPU Lightmass is in fact being built, just not around the mesh, but in a larger radius and with reduced strength compared to 5.1.1. They foun ...
[CrashReport] UE4Editor_Engine!UGameViewportClient::Draw() [gameviewportclient.cpp:1170]
UE - Graphics Features - Apr 4, 2017Was 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 (first/seco ...
Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering
UE - Simulation - Physics - Destruction - May 10, 2025Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering. Once the Remove-On-Break Cluster Crumbling effect is activated, there is a small delay between the disappearance of th ...