Compiling twice then pressing play/stop after creating a c++ Game Instance causes a crash

UE - Foundation - Cpp Tools - Live Coding - Jan 24, 2022

This is not a regression. After creating a C++ based Game Instance the Editor crashes if you compile twice then play and stop. ...

Clients unable to control their character if GameMode/State is persisted through seamless travel

UE - Networking - Jan 24, 2022

Normally during seamless travel, the GameMode and GameState are only kept when traveling to the transition map, not when going from the transition map to the destination. If these actors are kept al ...

Size input box too narrow in UMG Widget Editor

UE - Editor - UI Systems - Jan 24, 2022

Only 2 digits are visible in the size box that holds values between 1.0 and 0. Meaning most values will contain 3 digits. This is different from UE4 where more digits are visible. ...

Variable watch within state machines is broken

UE - Anim - Runtime - Anim Blueprints - Jan 21, 2022

Watching variables within states seems to be broken. See repro steps for details. ...

Changelists window refreshes excessively

UE - Editor - Workflow Systems - Jan 21, 2022

When View Changelists window is opened, users are reporting slowdowns from actions such as moving actors (external actors). ...

Sphere trace in control rig only works with actor with the collision object type of "World Static".

UE - Anim - Rigging - Control Rig - Jan 21, 2022

One of our customers reported on UDN that sphere trace in control rig only works with actor with the collision object type of "World Static". Is that by design or a bug? ...

[Sequencer][Audio] - Soloing a nested audio track mutes all tracks

UE - Audio - Sequencer - Jan 20, 2022

When soloing an audio track in sequencer, all the tracks are muted and nothing in soloed. Attached video shows Mute working correctly followed by Solo not working[Link Removed] Cannot reproduce i ...

Changing Frame Buffer Pixel Format to Float RGBA makes the editor color look greyed out.

UE - Virtual Production - Rendering - Color - Jan 20, 2022

Changing Frame Buffer Pixel Format to Float RGBA makes the editor color greyed out with a faded look. This is not a regression it is occurring in 4.27. ...

Niagara Dynamic Parameters do not reflect layers in material instances.

UE - Niagara - Jan 19, 2022

The names of dynamic parameters in material layers do not seem to update from material instances.  ...

Deleting a Sync Marker created by an Animation modifier deletes all Sync Marks made by the Animation Modifier

UE - Anim - Jan 14, 2022

Using the delete key or context menu to delete a single sync marker created by an Animation Modifier deletes all sync markers created by the Animation Modifier. If all the markers are deleted, and ...