Unreal Engine Issues
Unreal Engine Issues
Code Projects do not upgrade cleanly to 4.16
UE - Foundation - Core - May 4, 2017When using the "Switch Engine Version" option in the uproject's right click menu to change a project's engine association, switching to 4.16 and attempting to launch the project forces the project t ...
Color bubble has no effect in an Event Graph
UE - Gameplay - Blueprint - Feb 24, 2015If you add a comment to an Event graph Blueprint and change the comment color, the bubble should not change colors unless the Color Bubble detail is checked. I have included photos to better show ...
DisplayName UFUNCTION specifier working incorrectly with functions that have a return
UE - Gameplay - Blueprint - May 10, 2016When using the DisplayName specifier in a UFUNCTION that has a return (anything other than void), the DisplayName does not apply to the function's name in the My Blueprints panel after being overrid ...
Editor Crashes When Setting Location of Scene Component BP to World
UE - Gameplay - Blueprint - Dec 9, 2015In an actor blueprint with a scene component blueprint as its root, if you add a child object to the scene component blueprint, and then go into the scene component blueprint and set the location to ...
Mesh reduction modules selection aren't properly applied on engine restart
UE - World Creation - Worldbuilding Tools - May 4, 2023Recent changes in the MeshReductionManagerModule::StartupModule() have introduced issues where it won't respect what reduction modules have been set in the config file. This is a big issue for plugi ...
Reset Instance Changes to Blueprint Defaults does not reregister components
UE - Framework - Blueprint Editor - Jan 17, 2024For map placed blueprint actors with components with property modifications, when triggering Reset Instance Changes to Blueprint Default from the actor instance's Details panel, any components with ...
Calling UMoverComponent::IsModifierActiveOrQueued() immediately after calling UMoverComponent::K2_QueueMovementModifier() will return false
UE - Gameplay - Player Movement - Mover - Mar 10, 2025Calling UMoverComponent::IsModifierActiveOrQueued() immediately after calling UMoverComponent::K2_QueueMovementModifier() will return false. Checking the code, IsModifierActiveOrQueue() calls FindMo ...
Interface functions inherited after a duplicated actor blueprint is reparented to the blueprint it was duplicated from cannot be deleted.
UE - Gameplay - Blueprint - Oct 16, 2015Interface functions inherited after a duplicated actor blueprint is re-parented to the blueprint it was duplicated from cannot be deleted. Note that the inherited function can be deleted in a new ac ...
Performance Drop Occurring During PIE When Blueprint is Open
UE - Gameplay - Blueprint - May 20, 2016Having a blueprint open during PIE causes a significant drop in performance. Having multiple blueprints open can almost render more complicated projects unplayable. The user has reported 120 fps wi ...
Plugin fails to compile in 4.11 due to redefinition errors
UE - Foundation - Cpp Tools - Plugin System - May 10, 2016Plugin fails compile in 4.11 / 4.12 due to redefinition of class/struct type (locally). AH user reported LNK2005 error when compiling in 4.11 Regression: YES? - Project with the attached plugin co ...