Unreal Engine Issues

Navmesh generation does not work in landscape in Lazy mode.

Crash when launching 4.14.2 in cmd window with -dx12 argument

Launching the editor with DX12 from a command window is crashing the engine. Note Crash occurs on Nvidia version 376.19 and does not occur on 376.33 This is a Regression ...

AI Perception Hearing Sense Successfully Sensed Returning False

AI Perception Hearing Sense is returning false for successfully sensed, even when a Noise Event is being reported. Found in 4.12 binary. Reproduced in 4.11.2 binary. ...

Flickering / Color Shift in Right eye with Cascade Particle + Instanced Stereo

Flickering or shifted color will be seen in the Right Eye. User reports that moving the nodes from the material function to the base graph resolves the issue. Confirmed in 4.23 MAIN branch @ CL 6 ...

When spawning a large number of widget components they are not visible until the camera moves or the component is selected in the world outliner

When adding multiple Widget Components (at runtime) to the scene it appears that they do not render until the camera moves or they are selected in the world outliner ...

AI character does not recognize controller/behavior tree input when spawned during game

AI character in user project does not react to behavior tree commands when spawned during play. In the specific example attached, the first pawn works correctly, but when removed from play and a n ...

Reimport option overrides animation asset

When an FBX is imported with multiple animations, selecting any animation in the content browser and choosing the Reimport option will replace the selected animation with the first animation from th ...

Line Height Percentage causes highlighting for text to be offset

Line Height Percentage causes highlighting for text to be offset. The text appears to be moved (as expected), however when highlighting the highlight does not completely cover the text. ...

MaterialInstance ScalarParameter's desc can not upadate.

When this problem occurs, "MaterialExpression" is null in FMaterialInstanceParameterDetails::GetParameterExpressionDescription. ...

Cannot Add Player with a second controller in Lyra

Controller 1 is able to navigate the menu as normal, but if you hit the "Start" button on Controller 1, it'll flash the Add Player UI element but won't connect as Player 2, and the output log will s ...