Sampling Scene Texture in Custom Expression in Post Process Material Breaks Viewport UV

UE - Graphics Features - Apr 6, 2018

This issue does not occur in 4.18.3 but does occur in 4.19 and Main, making this a regression. Per user: I suspect there's an issue with custom expressions and sampling coordinates. It appears onc ...

Setting max undilated frame time to a negative value crashes the editor

UE - Gameplay - Apr 6, 2018

In the world settings of any level, changing the max undilated frame time to a negative number results in the editor crashing. ...

TimeSpan Variable to does not replicate

UE - Networking - Apr 6, 2018

The Timespan variable does not appear to replicate the changes to the variable to the client from the server (event with the Replication setting set to "Replicated"). In the example a float value ha ...

Cannot build Blueprint Function Library plugin for Mac and iOS

UE - Platform - Mobile - Apr 5, 2018

Trying to Build a Blueprint Function Library plugin for Mac and IOS fails for IOS. The error message indicates that it is looking for the UE4Game file, but it appears to be looking in the wrong fold ...

Graphic Artifacts on AMD GPUs When Mesh is Scaled to Large Size

UE - Graphics Features - Apr 5, 2018

This issue has been observed in 4.18.3 as well as 4.19. See attached screenshot showing scene from 4.18 on Nvidia, compare to attached GIF showing same scene on AMD card. ...

Perforce batch check-out of files with folders does not work correctly

Tools - Apr 5, 2018

Perforce's Batch check-in / check-out operations do not work correctly when trying to check-in / check-out a folder's contents as a direct asset (when selecting a folder and any other singular asset ...

If Mesh is Reimported When Clothing Data is Applied Clothing Data Can No Longer be Edited

UE - Simulation - Physics - Character - Apr 5, 2018

Clothing data can not be applied after the mesh that had clothing data already applied to it has been reimported Error message "Failed to bind clothing asset "nameofmesh"_0LOD1 is already mapped t ...

Disabling "Skip Unneeded Dependency Compilation" clears spline points on component compile

UE - Gameplay - Blueprint Compiler - Apr 5, 2018

Spline points are lost when compiling BP component. Component is used in PlayerCharacter. Spline Actor Casts to PlayerCharacter and calls a function on this component. Workaround: Open BP_SplineAc ...

Mesh Clothing Assets Data Does Not Update Unless Asset Details Panel is Closed and Reopened

UE - Simulation - Physics - Character - Apr 4, 2018

Data in the Asset details panel < Clothing(Mesh Clothing Assets) does not update unless the Asset Details Panel or the Mesh editor itself is closed and reopened. User Can not go between the Clothing ...

Setting MaxWalkSpeed(MovementComponent) on server causes stuttering on Client

UE - Gameplay - Player Movement - Apr 4, 2018

Client stutters when changing MaxWalkSpeed. Did not occur in 4.18 ...