Crash on Linux and Windows with Vulkan when adding Atmospheric Fog to a Level

Rendering - Dec 5, 2018

Adding an instance of Atmospheric Fog to a Level causes the Editor to crash on both Linux and Windows when using Vulkan. There is a different callstack when SteamVR is enabled on Linux which is also ...

Copy-pasted user created umg not updating if the template was modified

Tools - UMG - Dec 5, 2018

When copying/pasting a user created Widget into another widget any changes made to the copy will change the main Widget without making any changes to the copy. ...

GetClassDefaults should expose object properties if they are not instanced

Gameplay - Blueprint Editor - Dec 5, 2018

The current GetClassDefaults is overly restrictive in what it allows to be modified and not. Object properties that point outwards (i.e. non-instanced) should be accessible. ...

Changing Levels Does't Clear Global DistanceField

Rendering - Dec 5, 2018

In a packaged game or standalone, if you change map with DFAO enabled the previous DFAO will still be visible. This does not occur in PIE. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 CL# 4613 ...

Walking on a movable TG_PostUpdateWork produces incorrect component positions

Gameplay - Player Movement - Dec 5, 2018

When an actor set to movable and ticking with TG_PostUpdateWork is walked over, the character's capsule component position is incorrect during movement. ...

Static Mesh's Simple Collision does not mirror collision orientation when mirrored

Physics - Dec 5, 2018

Created Static Mesh Actor's Simplified Collision boxes do not mirror Collision Orientation when mirrored in the World/Editor. ...

AStaticMeshActor::CheckForErrors using exact compare instead of epsilon

Physics - Dec 5, 2018

AStaticMeshActor::CheckForErrors() is producing slightly incorrect results due to position and scale being exact matched, instead of using an epsilon comparison. Rotation is using Euler angles for ...

ContributeToMass not working when simulating physics

Physics - Dec 5, 2018

Un-checking the ContributeToMass setting on any part of a physics asset results in an ensure when simulating physics.  ...

GameplayTag category filters do not function on BP SET nodes.

Gameplay - Dec 4, 2018

BP SET nodes for FGameplayTags do not respect category filters, instead the dropdown shows an unfiltered list of all gameplay tags. Given the MyValue property decorated as follows: UPROPERTY(Edit ...

"Convert to Blueprint" removes ability to edit component properties

Gameplay - Blueprint - Dec 4, 2018

As noted by the user in the linked UDN question, this seems to be a problem with the PointLightComponent property on APointLight not having the VisibleAnywhere property descriptor. Also as noted, th ...