Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Access violation in UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks()
UE - Graphics Features - May 31, 2017This report has been logged due to a high volume of submitted crash reports. Additional information is currently unknown. User descriptionsDeleted 3 rocks from mesh folder and accepted to delete e ...
Translucent Wireframe Materials Exhibit TSR Aliasing/Crawling Due To Incorrect Velocity Rendering When Set to Output Depth And Velocity
UE - Rendering - Features - Nov 27, 2025Note that this bug potentially also affects a wide variety of material / geometry setups; however, a translucent wireframe setup is currently the main reproduction case. The issue may also be notice ...
Crash occurs when a struct containing an instanced object property is used as the value for a TMap in a class that is subclassed in Blueprints
UE - Foundation - Core - Mar 23, 2017Using a struct containing an instanced object property as the value for a TMap results in a crash if a Blueprint of the class containing the TMap is subclassed and the child Blueprint is opened the ...
GameInstance and subsystem initialization order is incorrect for Play In Editor
UE - Gameplay - May 18, 2023The order of world and game instance initialization is different between a true standalone game (cooked game or an editor build with -game) and a Play In Editor game. Specifically, in Play in Editor ...
Client crashes after second seamless travel when a blueprint manually placed in the world spawns a replicated actor
UE - Networking - Sep 19, 2019When a user loads into a level that spawns replicated actors using manually placed blueprints twice using ServerTravel with Seamless Travel enabled it will crash. It looks like the engine can't find ...
Crash running construction script after compiling BP function library
UE - Gameplay - Blueprint - Sep 15, 2020Editor can assert when changing the signature of an editor authored Blueprint Library Function (FuncA) if that function is called from a Blueprint Library Function (FuncB) via an actor's constructio ...
Inaccurate Panning on Tap Delay Submix
UE - Audio - Oct 5, 2021The panning in the Tap Delay Submix Effect does not always match its assigned Pan in Degrees value. Specifically, the left and right side appear to be reversed on Stereo setups. In addition, in 5.1 ...
[CrashReport] UE4Editor_MovieSceneTracks!UMovieSceneCameraCutSection::GenerateTemplate() [moviescenecameracutsection.cpp:24]
UE - Anim - Sequencer - Oct 30, 2017This is a somewhat common Sequencer crash that occurs in 4.17 and 4.18. User DescriptionsWas trying to copy and paste a camera movement but something screwed up, I tried to add an already built Cam ...
Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key causes a memory leak
UE - Framework - Blueprint - Apr 15, 2025When Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key, the function construct the default structure in-place on the given pointer without destroying the object. This behavior ca ...
[CrashReport] UE4Editor_Core!FName::GetDisplayNameEntry() [unrealnames.cpp:894]
UE - Rendering - Architecture - Materials - Sep 14, 2017This is a somewhat common crash in 4.17.1. This same callstack appeared a few times during 4.11, but then has not been seen until recently. Users have not provided any descriptions of their action ...