UHT doesn't support trailing const in some declarations

UE - Foundation - Cpp Tools - UnrealHeaderTool - Sep 17, 2018

UnrealHeaderTool cannot parse certain declarations with a trailing `const` instead of a leading `const`. ...

Instance UObjects in an array on an Actor replaced by pointers to other objects in array while PIE

UE - Gameplay - Blueprint Runtime - Sep 20, 2018

When this issue occurs printing out the addresses of each item in the array shows that elements 2 and 3 have the same address, so for some reason the second element's value is being overridden by th ...

"Start Previewing Node" Does Not Work For Post Process Materials

UE - Graphics Features - Oct 1, 2018

Using "start previewing node" in a post process material does not work. The preview will only show the final result that is connected to the material attributes.  Working as expected in 4.18 CL# 38 ...

PseudoVolumeTexture inverted on GL

UE - Platform - Mobile - Oct 16, 2018

UDN report: Hi, This is not really a question, but I just wanted to point something. It seems that the PseudoVolumeTexture method in common.ush is not working the same way between DirectX and Ope ...

Packaged Builds with DX12 Crash on 2nd Start

UE - Graphics Features - 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 ...

Launching on IOS, sessions do not appear in the Session Frontend

UE - Networking - Oct 17, 2018

Licensee reports: Dug into this further and our iOS devices aren't receiving any of the handshake messages sent by the Session Frontend (or any other UDP messages for that matter) because multicast ...

[CrashReport] <unknown module>!NvClothPROFILE_x64!physx::shdfnd::Array<nv::cloth::`anonymous namespace'::VertexDistanceCount,nv::cloth::NonTrackingAllocator>::growAndPushBack()

UE - Simulation - Physics - Aug 9, 2018

No user comments in crash group 760 PX_ASSERT((!capacity) || (newData && (newData != mData))); 761 copy(newData, newData + mSize, mData); 762 763 // inserting elem ...

Simulated ability tasks not being cleaned up in UActorChannel::ReplicationMap

UE - Networking - Nov 20, 2018

I've noticed the issue occurring in both 4.20.3 (CL 4369336) and 4.21.0 (CL 4541578). The user on AnswerHub has also noticed the issue in 4.20.2 (CL unknown) and claims the issue did not occur in 4. ...

"Convert to Blueprint" removes ability to edit component properties

UE - 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 ...

Skel Vert/Surf Emitter Location Local Not World Space

UE - Simulation - Physics - Character - Jan 3, 2019

A Skel Vert/Surf particle system attached to a cloth actor spawns particles around the origin instead of around the actor. ...