Unreal Engine Issues

No warning for deleting an actor when its referencers are unloaded

Normally a warning appears to confirm references to an actor will be deleted. If the references are unloaded then no warning will appear. ...

Installed Editor doesn't package the right target if Marketplace plugin are installed before first launch

Something is wrong with the TargetInfo.json file generated when they are some Marketplace plugin installed. The client reported this workaround:  Backup the plugins found in Engine\Plugins\Marketp ...

Renaming Niagara's emitter name in the Timeline panel causes a crash

Renaming an emitter's name in Timeline panel of Niagara editor causes an editor crash. This happens because FViewModelHierarchyOperation constructor is called with null InAnyModel ptr; FViewModelHi ...

Displaying Revision control history for a file ending in an "undo" of a revision can cause a crash

This crash is caused by how source control history is managed and shown. In this specific case the source control software is Perforce. As written in the repro steps, it can happen to any uasset tha ...

Crash on Unreal Editor Exit due to subclass of UEditorUtilitySubsystem

Since UE5.4, it has been reported that if there's a class derived from UEditorUtilitySubsystem, the program crashes when the editor exits. This is because the code added in CL30853505 accesses freed ...

Editor will crash if a material uses ImposterCaptureSwitch material function after build lighting

Weightmap painting on 2x2 subsections causes offset depending on which subsection painted on

CharacterMovementComponent - Jump incorrectly simulated when moving against a wall, resulting in an apex height lower than expected and framerate-dependent

The CharacterMovementComponent simulates the position of a jumping/falling character inside function UCharacterMovementComponent::PhysFalling() [CharacterMovementComponent.cpp:4381]. On the main cod ...

UMG: crash when a namedslot has content in a widget blueprint and its instance

workaround: open WBP_A and remove its namedslot content to avoid having two contents in the same namedslot. ...

UDebugDrawService doesn't display text on Blueprint Editor viewport from UDebugComponent

By creating a DebugComponent, the texts added to this component are not displayed in the viewport of the Blueprint editor. This is because the UCanvas reference that is being passed is that of the ...