Unreal Engine Issues

Get Tracking State does not change in ARCore

On android, there is no way to detect when an image is not tracked by the camera anymore. Once the image is tracked, the tracking status of the image is always "tracking". According to GoogleARCore ...

Simple collision Landscape returns incorrect physical material

When a landscape uses simple collision, the returned physical material can be mismatched. This seems to be a result of ConvertHeightfieldDataForPhysx within ULandscapeHeightfieldCollisionComponent: ...

Curves in compressed additive animations interpolate incorrectly when two keys in a row have the same value

Curves compressed from additive animations will not interpolate correctly if they have two keys in a row with the same value. The second key will be ignored, leading to the curve interpolating earli ...

Tool tip grammer error for "Force Layout Prepass" node

Grammatical error in a tool tip for the Force layout prepass node. It appears that he word "is" needs to be removed (see attached image) ...

The Rotate Around Point Niagara module does not account for current particle position

The rotate around point module no longer adds in particle position, so it does not account for other forces and modules effecting the particles, and will only spin in a circle by default. The user c ...

Visibility animations don't propagate to children

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 ...

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 ...