Unreal Engine Issues

Object type properties with instanced modifier in a child actor is lost when saving

Having two Play Persistent Audio modules in Niagara will only play the first sound

Only one Play Persistent Audio module will work at a time in a Niagara emitter. ...

Enhanced Input does not fire a "Cancelled" event for mappings that were in progress, but removed during a key-rebuild

If the return value of a trigger goes from ETriggerState::Ongoing to ETtriggerState::None, without returning a ETriggerState::Triggered, then there should be a "cancelled" event that is fired when E ...

'Max World Position Offset Displacement' causes culling issue on HISMC/foliage in 5.4

Foliage/hierarchical instanced static mesh components have issues with culling when their material's "Max World Position Offset Displacement" value is a higher amount, e.g. 100.0. ...

Collision boxes slow to move when using higher poly meshes

Collision boxes become sluggish to move when using higher poly meshes. High poly boxes attached (60 K and 120K tris) Users Video for reference: [Link Removed] ...

Changing component type in code breaks blueprint details for the component

If the VisibleAnywhere specifier is use in the UPROPERTY macro of a code based component, changing that component from one type to another (from USphereComponent to UBoxComponent for example) will c ...

Custom Blend Graph read only after copy/paste of State Nodes

When copy/pasting a state network, if any transition has Custom Blend Logic, the Custom Blend Graph becomes read only in the pasted version. ...

Teleporting to the World Location of a Scene Component in a packaged game will crash the game

Teleporting to the World Location of a Scene Component in a packaged game will crash the game. Teleporting to the Actor Location does not cause this crash. Crash log attached. Nothing is showing up ...

A duplicated component in the blueprint editor is invisible and the pivot stays at 0,0,0 until compiled

A duplicated component in the blueprint editor is invisible and the pivot stays at 0,0,0 until compiled User Description: Since 4.8 if I duplicate a child actor component in the viewport the dupli ...

Add Code to Project fails to add a class to the project

Add Code to Project fails to add a class to the project. The project can't be reopened until the classes are manually removed and the project is recompiled. The following errors occur when using Add ...