Unreal Engine Issues
Unreal Engine Issues
Engine Crashes When Building Lighting if Precomputed Visibility Aggressiveness is set to VIS Max
UE - Graphics Features - Nov 30, 2017The engine crashes when building lighting if World Settings >> Precomputed Visibility >> Visibility Aggressiveness is set to "VIS Max." A Fatal Error message sometimes appears (screen shot attached) ...
Crash when BP_LightStage SkyLight Cubemap Resolution changed by spinning value
UE - Graphics Features - Nov 28, 2017Engine crashes when the value in the Cubemap Resolution for the SkyLight component in the BP_LightStage is changed by spinning the value. This asset is found within the Advanced_Lighting map of a B ...
Crash upon editing a GameplayTagQuery inside of a DataAsset
UE - Gameplay - Oct 27, 2017When a GameplayTagQuery variable is edited from inside of a DataAsset, the editor crashes when the changes are saved. This could be related to a bug that was fixed previously: [Link Removed] Regres ...
Crash Occurs When Attempting to Resume Execution After Hitting a Breakpoint in a BT Task
UE - Gameplay - Oct 6, 2017When a breakpoint is hit in a BT Task, if you attempt to use CTRL+P to search for and open the BT the task is being run in, try to resume execution, and then return to the original BT Task Blueprint ...
Editor Crashes After Building Lighting with Blueprint Set to Native Parent Class: Light
UE - Graphics Features - Oct 26, 2017Whenever a Blueprint set to Native Parent Class: Light is placed into a level, Editor crashes after building lighting. The Blueprint does not need to contain an actual light component to crash the e ...
Map placed actor binding to another actor's Event Dispatcher (multicast delegate) results in duplicate bindings after blueprint recompile
UE - Framework - Blueprint - Apr 17, 2025Context Blueprint actors placed on the map can bind to another actor's event. If an ActorB has a reference to ActorA, it can bind to an event dispatcher in A by creating an event node in ActorB's e ...
Cloth paint update issues
UE - Simulation - Physics - Jan 7, 2020Activating and Deactivating Cloth Paint marks the skeletal mesh as dirty, even if no values were painted and there is no transaction in the Undo History. Painting Max Distance values from non-zero ...
Horde server fails to build Docker image
UE - Foundation - Horde - Server - Apr 1, 2025If you attempt to build the Horde server Docker image right now it fails unless you have some of the layers cached or a nuget proxy/cache that has cached some packages. JetBrains have renamed their ...
Foliage: Speed tree wind is reset for every add/remove/update on instances
UE - World Creation - Worldbuilding Tools - Foliage - Jul 10, 2018Foliage: Speed tree wind is reset for every add/remove/update on instances What is happening:When we invalidate the render state, proxy are recreated, causing the wind to be removed and add again, ...
After upgrading a project from 4.7 to 4.8 and compiling a blueprint that casts to and pulls a variable from a widget will cause a freeze if the widget is then compiled
UE - Gameplay - Blueprint - May 7, 2015If the user has a project that casts to a widget to pull out a variable in a 4.7 project. This can cause a freeze after upgrading the project to 4.8 preview. This happens when the user compile the b ...