Unreal Engine Issues
Unreal Engine Issues
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 ...
Lack of multi-bounce when using software traced lumen radiosity
UE - Graphics Features - Lumen - Apr 4, 2025Certain Lumen Hardware Ray Tracing CVars, when disabled in isolation, will not fall back to tracing the Global Distance Field, because the Global Distance Field is still disabled. The function "Lum ...
Android Crash on app launch if AdditionalPluginDirectories contains wildcards in path
UE - Platform - Mobile - Jun 23, 2017Having wildcards in the path for AdditionalPluginDirectories causes apps on Android to crash on launch. When testing this on iOS, the app did not crash but froze at the splash screen instead. Androi ...
Capsule overlap area different/inaccurate after simulating physics
UE - Simulation - Physics - Nov 12, 2015A licensee found a problem with a capsule component used in a blueprint. A player intersecting the spherical ends of the capsule will cause it to fire overlap events. However, after simulating physi ...
Editor windows do not lose focus when minimized on Linux
UE - Platform - Linux - Jul 28, 2015Using Ubuntu 15.04, editor windows do not layer correctly when minimized. Control remains with the minimized window. Ex. After minimizing a blueprint window, right clicking will still act as thoug ...
Post increment operator is not overridden for data structure iteration
UE - Foundation - Core - Mar 21, 2017Attempting to use a post increment operator in a TMap or TSet iterator will fail to compile with error shown in callstack field. This is due to the post-increment operator not being overridden in M ...
Preview Rendering Levels are not saved when Opening Level/Project
UE - Graphics Features - Jan 27, 2017When switching the preview rendering level to any of the mobile shader models and opening a new level, the preview rendering level does not get reapplied to that particular level. This is contrary t ...
Character rotations can diverge between clients and client/server briefly under packet loss and using bOrientRotationToMovement
UE - Gameplay - Player Movement - Jun 4, 2020At some points the rotations will diverge briefly while the client and server attempt to rotate to the orientation direction by going different directions about the rotation axis. ...
Color Information Clamped to a Max of 1 in Cascade Color Modules
UE - Graphics Features - Dec 3, 2014You cannot enter a value higher than one in any color module. WORKAROUND - You can graph it and select the point you want to change and then set value to any number, but it will be clamped back to ...
UDN: ChildBP - When replacing Static or SkelMesh Compoent inherited from the Parent Class, Socket list doesn't update
UE - Gameplay - Blueprint - May 21, 2015This is simple, but maybe hard to explain, so hear with me. I've attached a sample project and Repro Steps below in case it's not clear. Basically: 1. Make BP_Parent with an unassigned Mesh (Stati ...