GameplayAbility Blueprint's FGameplayAttribute does not retain value reference upon Compile

Gameplay - Sep 17, 2019

GameplayAttribute-type function arguments in BP-callable functions(I.E a Blueprint event graph) or nodes have their value reset on BP compilation ...

Diffing Tool showing false positive when diff'ing identical blueprints using FText input pin

Tools - Localization - Sep 17, 2019

When diffing the two blueprints, the FText values are deemed different when they are the same. A workaround has been found by doing a pure string-compare for FText inside "GraphDiffControl::ArePinsD ...

Root motion with SubAnimInstance can cause notifies to not trigger.

Anim - Animation - Sep 16, 2019

Setting up root motion in a sub instance to RootMotionFromEverything seems to cause the sub instance to evaluate, and override the notifies of the animation that was playing, which prevents the noti ...

Viewport breaks with Forward Shading, MSAA and Accurate Velocities from Vertex Deformation Enabled

Rendering - Sep 13, 2019

With Forward Shading, MSAA and Accurate Velocities from Vertex Deformation enabled  the viewport breaks. If any of these settings are different, the viewport is fine again. Found in 4.23 CL# 838658 ...

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float"

Gameplay - Sep 13, 2019

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float". Found in 4.22.3 CL#7053642 Reproduced in 4.23.0 CL#8386587, 4.24.0 Main CL#8671808 ...

Anim with rate scale other than 1.0 will not loop correctly in Sequencer when using an Anim Blueprint

Sequencer - Sep 13, 2019

Animations are looped incorrectly when using an animation blueprint and a rate scale other than 1.0 in Sequencer. ...

255x255 Quads Landscape on mobile is broken

Platform - Mobile - Sep 13, 2019

This issue is reproduced on mobile devices. According to the information from the licensee, it occurs with the following settings.[Image Removed] When executed, the following warning is displayed." ...

Crash When Enabling SSAO Smoothing with MSAA Enabled

Rendering - Sep 12, 2019

The Editor is crashing when enabling SSAO while MSAA is enabled.  Found in 4.23 CL# 8386587 and 4.24 CL# 8569829 ...

Unable to connect to Pixel Streaming when using FireFox

PixelStreaming - Sep 11, 2019

It appears that Pixel streaming does not currently work with the Mozilla Firefox web browser Docs link: https://docs.unrealengine.com/en-US/Platforms/PixelStreaming/PixelStreamingIntro/index.html ...

Imported Custom Convex Collision Mesh has Topology Modified

Physics - Sep 11, 2019

Importing custom pre-triangulated UCX collision data, can modify the topology of the mesh producing an inaccurate collision shape. ...