Crash after Undo and garbage collection on sequencer track

UE - Anim - Sequencer - Apr 18, 2019

A crash occurs after adding an additional camera track, undoing the additional, and then calling garbage collection Appears to be the same callstack found here [Link Removed] ...

Planar Reflections Falling Back to Baked Probes at Certain Angles

UE - Graphics Features - Apr 18, 2019

Planar Reflections Falling Back to Baked Probes at Certain Angles. Found in 4.21 CL# 4753647,  4.22 CL# 5660361, 4.23 CL# 5974510 Working as expected in 4.20 CL# 4369336 This is a regression ...

Cannot build Engine in Debug Editor configuration due to error caused by string literals in ClientSession.cpp

PixelStreaming - Apr 18, 2019

Attempting to build the Engine using the Debug Editor configuration results in a build failure related to a string literal (error C2338: Formatting string must be a TCHAR array.). There are three ch ...

Crash due to LAN beacon packet incompatibility in 4.22

UE - Networking - Apr 17, 2019

We changed the IP address serialization format without bumping the LAN beacon packet version. Should just need to bump it up. ...

High framerates result in desyncs with clients when using a dedicated server.

UE - Networking - Apr 17, 2019

When a client operates at a high framerate on a dedicated server, their player movement will become desynced with the server. This manifests in different ways on different versions. In 4.21, it caus ...

Config entries to re-open asset windows are deleted if the Editor is shut down while a debugger is attached

Tools - Apr 17, 2019

When the "Restore Open Asset Tabs on Restart" option is turned on in the Editor Preferences window, closing the Editor while a debugger is attached appears to remove any saved asset tabs from the Ed ...

Crash in FVulkanLinuxPlatform

UE - Platform - Linux - Apr 17, 2019

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

Attempting to Rename Multiple Sockets Crashes the Editor

OLD - Anim - Apr 17, 2019

Having multiple sockets selected results in a crash when attempting to change the names of them all at once. The box to change their names appears to be grayed out but you can still click into it. U ...

Client crashes when executing seamless travel with an active particle system in the level that was spawned at runtime

UE - Niagara - Apr 16, 2019

Clients crash when being part of a Seamless Travel if there was an active particle system in the level that was spawned at runtime. If the travel is not seamless, the particle system is placed in th ...

"Support Compute Skincache" throws an Assert for games on Linux

UE - Graphics Features - Apr 16, 2019

After enabling "Support Compute Skincache" in the project settings and packaging a game on Linux, the packaged game will throw an assert. Any setting that turns "Support Compute Skincache" on automa ...