Unreal Engine Issues
Unreal Engine Issues
Instances of Blueprints implemented native interface cannot be assigned to interface variables
UE - Gameplay - Blueprint - Oct 28, 2021FInterfaceProperty::SerializeItem (and ImportText) attempt to determine if the passed in object implements the interface in question. They do this by calling GetInterfaceAddress, which tries to get ...
GPU Crash in Niagara Fluids template when WorldSpaceSize has a component at 0
UE - Niagara - Apr 26, 2024The NiagaraFluids plugin provides several Niagara System templates to use as a starting point for the user's own Systems. The templates in category "3D Gas", such as "Grid 3D Gas Explosion", include ...
Special modifier key inputs do not register in editor if the key press occurs instantly
Tools - Mar 1, 2016Special function key presses and hotkey shortcuts do not register in the editor if they fire key presses instantaneously (0ms). In particular, TypeMatrix keyboards reproduce this error using keyboar ...
[CrashReport] UE4Editor_Renderer!FSceneRenderTargets::GetGBufferResourcesUniformBuffer() [scenerendertargets.h:408]
UE - Graphics Features - Jan 18, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: IsValidRef(GBuff ...
Trigger Montage Ended Event results in Unhanded Exception
OLD - Anim - May 6, 2019TriggerMontageEndedEvent is calling RemoveAtSwap after the NotifyEnd callback which is not safe if the ActiveAninNotifyState array is modified by the callback. WorkAround: Add a Delay node befo ...
Irrelevant If Else call in ScriptCore.cpp
UE - Gameplay - Blueprint - Nov 3, 2016On line #1301 in ScriptCore.cpp, there is the following if statement:if (Function->FunctionFlags & FUNC_Native) { Function->Invoke(this, NewStack, ReturnValueAdress); } else { Fu ...
Deleted custom event restricts name use on other fucntions/variables
UE - Gameplay - Blueprint - Jun 17, 2015If a custom event has been deleted, the name used on that custom event will not be able to be used on other functions/variables. This can be seen on the video posted here; [Link Removed] ...
Out-of-bounds read caused by improper return size from FSocketSteam::RecvFrom in Unreal Engine
UE - Online - Jun 7, 2021Overview: Function at fault: FSocketSteam::RecvFrom (https://github.com/EpicGames/UnrealEngine/blob/c3caf7b6bf12ae4c8e09b606f10a09776b4d1f38/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Private/ ...
CoreRedirects cannot be properly used to rename a BlueprintImplementableEvent that has a return value
UE - Gameplay - Blueprint - Dec 7, 2017Attempting to use CoreRedirects to rename a BlueprintImplementableEvent that has a return value results in the function not being renamed in the Blueprint subclasses and its Return Value nodes causi ...
The color picker stops working after changing the color once on a color property on a component
UE - Editor - UI Systems - Slate - Nov 13, 2019Changing the color on a component property via the color picker will cause the picker to stop working until it's closed and reopened. This occurs because a property change event is sent out, and the ...