Opening Color Picker Windows crashes editor with Assertion Failed: IsOutsideRenderPass() in VulkanCommandBuffer.cpp

Platform - Linux - Oct 25, 2018

Opening Color Picker Windows crashes editor with Assertion Failed: IsOutsideRenderPass() in VulkanCommandBuffer.cpp Did not reproduce on Nvidia Linux Similar to: UE-63107 but distinct from it in t ...

The "alignas" keyword cannot be used with a USTRUCT

Core - Oct 24, 2018

The alignas keyword is not usable with a USTRUCT. It can be used with a normal struct. ...

Crash occurs when starting PIE on a level containing a FunctionalTest Blueprint and a sub-level with a landscape component in both levels

Tools - Landscape - Oct 23, 2018

Placing a FunctionalTest Blueprint into a level that contains a landscape component and a sub-level that also contains a landscape component results in a crash when PIE is started. This only occurs ...

Movement Tolerance for Spawn Per Unit Does Not Function

Rendering - Cascade - Oct 19, 2018

Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...

Maximum Resolution Windowed Mode Covering Task Bar

Rendering - Oct 19, 2018

Using the maximum resolution available on the monitor for windowed mode results in the window overtaking the Windows taskbar. ...

Navmesh doesn't work in a Packaged Build if it was placed in a Sublevel

Gameplay - AI - Oct 19, 2018

Once packaged, a persistent level is unable to create navmesh data properly if the navmesh bounds volumes are only present in its sublevels. The issue can be traced to the UNavigationSystemV1::IsThe ...

Packaged Builds with DX12 Crash on 2nd Start

Rendering - Oct 18, 2018

Running a packaged game with DX12 will crash on launch every second start and after. If you delete the files with the .ushaderprecache extension that are in the ProjectName/Saved folder the exe star ...

Can't access Actor in Sublevel from Persistent Level Blueprint

Gameplay - Oct 17, 2018

You are unable to access or create references to any Sublevel Actors in the Persistent Level Blueprint. Licensee reports being able to select the Sublevel Actor and then right-click to create a refe ...

GetAssetRegistry by class and subclass only works for Material data types

Gameplay - Oct 16, 2018

The GetAssetRegistry blueprint node only produces the asset data for the Material class and its subclasses. It completely ignores the asset data for Actor, derived Actor class Blueprints, and the su ...

SceneCapture2D Crashes When Changing to a Mobile Preview

Platform - Mobile - Oct 16, 2018

With a SceneCapture2D actor in a level the editor will crash when changing to a mobile preview. Working as expected in 4.20 CL# 4369336 Found in 4.21 Preview 1 CL# 4435822 and 4.22 CL# 4470579 Th ...