Unreal Engine Issues
Unreal Engine Issues
IsTraceHandleValid with default FTraceHandles has unexpected behavior on the first frame
UE - Simulation - Physics - Sep 18, 2018Because both FWorldAsyncTraceState's CurrentFrame and FTraceHandle are default initialized to 0, on the first frame, if a new Asnc Trace starts all default FTraceHandles will reference the same (now ...
Ensure Occurs When Using Russian Letters In a Text Variables
UE - Gameplay - Oct 4, 2018The Editor will hang when using Russian characters for a text variable in a Blueprint. It seems to occur when using the character "л" is used. Only seems to occur once in a project. Found in 4.19 C ...
Max Draw Distance Can't Be Set Again Until Set Back to Default
Max draw distance cannot be changed to a higher value than it is first set, until you reset it back to default. Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4369336, 4.21 CL# 4516095, ...
Duplicating a SetMaterialAttributes Node Causes Missing Attributes
UE - Rendering Architecture - Materials - Nov 5, 2018Duplicate SetMaterialAttributes nodes will be missing attribute connections on the node itself, but in the properties tab they will show up. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Previe ...
Custom Stencil Is Not Rendering In UI Materials
UE - Graphics Features - Nov 30, 2018Widgets with a UI Material that uses Custom Stencil will not render meshes with a set stencil. This is working as expected in 4.19 CL# 4033788. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 ...
Changing Levels Does't Clear Global DistanceField
UE - Graphics Features - Dec 5, 2018In 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 ...
Packaged C++ Project Fatal Error on Startup When Spawning Niagara System Via a Character Blueprint
UE - Niagara - Jan 7, 2019Using the system blueprint node in the character blueprint will cause the packaged game to give a fatal error when running the executable. This only occurs when in a C++ project. Found in 4.20 CL# ...
UWorld::CleanupWorld causes issues with sublevels when changing maps after building lighting
Tools - Mar 1, 2019A licensee has reported that UWorld::CleanupWorld is causing issues with assets in Sublevels if you build lighting on the parent level, save all of the maps, and then change to another level. The as ...
Dynamically Created Render Target Does Not Work in Packaged Project
UE - Graphics Features - Mar 27, 2019Dynamically created render targets do not work as expected when packaged for windows. If it is replaced with a static render target, it works fine. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 ...
Foliage and Static Mesh Actor Distance Field Shadows Incorrect after Manually Shifting World Origin to New Location
UE - World Creation - Worldbuilding Tools - Foliage - Apr 19, 2019Foliage and static mesh actor distance field shadows incorrect after manually shifting world origin to new location. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5974510 ...