Unreal Engine Issues
Unreal Engine Issues
Editor Dirty flag not updated in Windows task bar until focus is returned
Tools - Jan 10, 2015A Blueprint marked Dirty will appear in the Windows Task Bar with an asterisk beside its name. Saving this Blueprint will remove the Dirty flag, but the Task Bar will continue to show the BP as Dirt ...
Aim Offset points update position when the scale of the graph is changed in Persona
UE - Gameplay - Jan 14, 2017This is a regression from 4.14.3 at CL 3251583 ...
Out-of-Bounds Access During Partial Updates of ISMC Per-Instance Custom Data
UE - Graphics Features - Jan 6, 2026When using instance custom data values, removing an instance and changing the number of custom data floats in sequence can cause an array-out-of-bounds crash. The underlying arrays are not resized ...
Creating a Second Strategy Game Project with the Default Name Doesn't Update References in Code
Tools - Dec 1, 2015Creating a second Strategy Game project, and leaving it as the default name (StrategyGame2) will prevent it from being compiled. The compile fails because the files are not properly renamed to match ...
SpectatorScreenMode console commands do not update SpectatorScreenMode in VR Mode on Windows Mixed Reality
UE - Platform - XR - Mar 21, 2019None of the Spectator Screen Mode commands are changing the active SpectatorScreenMode in VR Mode on Windows Mixed Reality headsets. This same setup modifies SpectatorScreenMode on Oculus, Vive, and ...
Changing blueprint default values inside arrays only updates loaded child blueprints
UE - CoreTech - Jul 30, 2020The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...
When using Blueprint Update Camera, New Camera FOV is taken into effect even if Return Value is false
UE - Gameplay - Oct 30, 2017In a Player Camera Manager Blueprint, when overriding the function BlueprintUpdateCamera, the New Camera FOV value takes effect regardless of whether Return Value is True or False. The New Camera Lo ...
Renaming a Blueprint interface asset doesn't update the ImplementedInterfaces list in the Blueprint editor's Class Settings tab
UE - Framework - Blueprint Editor - Nov 13, 2023There is no UI refresh for the Implemented Interfaces list in the Blueprint editor UI after a Blueprint Interface asset is renamed in the Content Drawer. Consequently, the interface cannot be remove ...
Skeletal Mesh rigid body simulation is not being updated with correct bones locations right after Skeletal Mesh is spawned
UE - Simulation - Physics - Nov 5, 2018When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh compone ...
UProceduralMeshComponent::UpdateMeshSection does not call UProceduralMeshComponent::UpdateCollision
UE - Simulation - Physics - Apr 20, 2020Updating a procedural mesh results in an incomplete collision update. Collision bounds appear to get updated properly, but collision data is not updated, despite a navigation rebuild being triggered ...