Unreal Engine Issues

Nav Modifier Volume Not Affecting Nav Mesh Until it is Moved

Nav Modifier volumes are not affected the nav mesh until they are moved from their initial placement position. Found in 4.13.1. Reproduced in 4.12.5 and 4.15 Main CL 3163223 This is similar to [Li ...

Significant frame drop while blueprint nodes are being rendered on other monitor.

The nodes in the blueprint editor require a lot of resources to render, causing framerate issues whenever they're being shown. The more that are shown, the worse the framerate issues. While a framer ...

Use Viewport's BackBuffer as Pixel Shader's input texture fails on Android

UDK Link: link title In this project, they need to get the BackBuffer(including UMG), and use this BackBuffer to do some post-processing. So follow the code in FViewportSurfaceReader :: ResolveRende ...

Running game does not exit when exited through its library page in SteamVR

Actor Components Tick Automatically with Auto Activate Set to False

Actor Components with Auto Activate set to false are still ticking. If you activate the component on begin play, set a short delay, and then deactivate it, the ticking will stop, which is inconsis ...

Projects are failing when Content/Pak folders are added outside of the saved folder

When the Content/Pak file is outside of the Saved Folder, it'll crash with an internationalization error. But when the Content/Pak file is inside of the Saved folder, there is not a crash. ...

Marking a Blueprint as Deprecated Causes Existing Instances to be Removed on Level Load

Enabling the 'Deprecated' option in a blueprint's Class Settings causes all existing instances of it to be deleting upon loading any levels that contain the blueprint. Found in 4.13.1. Reproduced i ...

Steam Controller joysticks do not register for Gamepad Joystick events in the editor

When using the Steam Controller in the editor, even if the left joystick is set to be inputting joystick events, it continues to emulate WASD for movement or doesn't take any input at all, depending ...

Lengthy Compile Times on Blueprints Containing an Array of Self References When Multiple Instances Exist in the Level

There are lengthy compile times with a blueprint with 50+ instances in the level that contains an array of self references. On lower-end machines, the compile times are upwards of 10 seconds. Found ...

Event Dispatcher Automatically Targeting Self in Child Blueprint

When attempting to bind an event in a child blueprint using a variable from the parent blueprint, the target of the assign node is automatically set to self instead of the target variable that you d ...