Steam VR overlay not available when launching packaged game on Oculus Rift through SteamVR without disabling Oculus plugins

UE - Platform - XR - Sep 26, 2017

Steam VR overlay not available when launching packaged game on Oculus Rift through SteamVR with -hmd=steamvr. Disabling Oculus plugins (except for input) allows it to be summoned normally. Same th ...

Planar Reflections do not respect SkyLight intensity

UE - Graphics Features - Nov 14, 2017

Planar Reflection actor does not reflect the intensity change of the SkyLight. In attached images, the Intensity of the SkyLight is set to 2. The darker area on the right is affected by the Plana ...

Crash on garbage collection - Encountered 20 object(s) breaking GC Clusters assumptions.

UE - Foundation - Core - Aug 15, 2018

Garbage collection crash during opening cinematic. Note after crashing and relaunching the game the saved file appears as 8% complete instead of 0%. Note this crash is also occurring with //UE4/D ...

Levels lose folder hierarchy in Levels window on streaming method change

Tools - Mar 19, 2019

In the Level Window, Sub Levels which are nested inside of a folder will lose their hierarchy upon changing their streaming methods. ...

can not load all actors when load level with ULevel::LoadAllExternalObjectsTag

UE - World Creation - Worldbuilding Tools - Jun 25, 2024

the udn link:https://udn.unrealengine.com/s/question/0D5QP00000OxDLH0A3/%E9%80%9A%E8%BF%87%E4%BB%A3%E7%A0%81%E6%88%96%E8%80%85%E8%93%9D%E5%9B%BE%E8%8A%82%E7%82%B9%E5%A4%8D%E5%88%B6%E5%85%B3%E5%8D% ...

Inconsistent warning with actor root component mobility setting

UE - Gameplay - Oct 27, 2016

When an actor class sets the root component mobility to Static or Stationary, spawning an instance of the class (or child blueprint) during runtime will print a warning message in the output log of ...

Static Meshes in Precomputed Visibility Cells are not occluded by landscape

UE - LD & Modeling - Terrain - Landscape - May 5, 2016

When using precomputed visibility on device for occlusion culling the landscape does not take the cameras view into account for culling objects when out of view of the camera and inside a visibility ...

Creating Widget at run time with an exposed variable causes Engine crash with Assertion

Tools - May 8, 2020

If you are using the default values of the In Size the project will run fine, but changing the values will make the engine crash. This was reported and tested in 4.25 (CL-13144385) and reproduced i ...

When binding Color and Opacity setting for a text block, linear colors can not be used

UE - Editor - UI Systems - Nov 19, 2014

If a user binds the color and opacity settings for a UMG text block they cannot use linear colors directly. They must convert them in to slate colors. When changing the pin on the return node to acc ...

Delay nodes occasionally don't fire the "Completed" output in a nativized build.

UE - Gameplay - Blueprint - Jun 13, 2018

This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...