Unreal Engine Issues

Unexpected foliage instances are duplicated

Dispatcher event called from actor blueprint needs to compile in a specific order

Dispatcher events being called from actor blueprints have to be compiled in a specific order to successfully call the dispatch event.  ...

Collab Viewer: VR motion controllers don't work as intended as a VR Client

The motion controller hands are broken in the Colab Viewer template when connecting as a VR client. ...

Child Blueprint components become broken in sequencer when "Run Construction Script in Sequencer" is checked

When enabling "Run Construction Script in Sequencer" on a Blueprint Child Actor and having "Rerun Construction Scripts" turned on in Sequencer, the Child BP's properties become inaccessible in Seque ...

Blueprint macro in a level blueprint causes memory leak

The level blueprint has a macro that references a level. FBlueprintNodeTemplateCache keeps holding this cashe at transition level. Unable to find source-code formatter for language: text. Available ...

Copy Procedural Mesh from Static Mesh Component does not work correctly when the order of material slots is different

This issue occurs when the section and material slot order do not match In this sample project:[Link Removed] According to a report from the licensee, the order of Sections seems incorrect.[Link R ...

Unloading a spawned Detour AI Controller using Level Streaming causes a crash

In a Level Streaming setup, unloading a level that has spawned an AI Character with a Detour AI Controller causes a crash. This was reported and tested in 4.23 (CL-8386587). This was reproduced in ...

Sorting a Blueprint variable into a subcategory separates variables into separate category structures

Within the Blueprint Editor, it is possible to create subcategories for variables to be sorted into. Doing so separates variables not nested into subcategories out into standalone, top-level structu ...

Camera modifier blueprint used in another blueprint crashes editor (Assert failed in edit condition code in details panel)

Changing the default values inside of a camera modifier blueprint when referencing it in another blueprint results in a crash. Tested in 4.21, 4.22, 4.23 and 4.24 ...

thumbnail is updated at an unintended timing

This seems to be because the OrbitZoom of ThumbnailInfo is rewritten by ResetCamera () when the viewport is opened. Is this correct processing? ...