Unreal Engine Issues

Upgrading Project After Disabling Light PropagationVolume Plugin Causes Crash

Attempting to upgrade a project from 4.10 to 4.11, or 4.11 to 4.12 with the LightPropagationVolume plugin disabled causes it to crash. Found in converting a 4.10 project to 4.11, and reproduced con ...

Fullscreen Not Functioning when Windows Task Bar is Docked Vertically on the Left

If the Windows Taskbar is docked on the right side of the screen, when Playing in Editor (Standalone Mode) game AND/OR a final packaged game, entering fullscreen results in the game window opening t ...

Ray Traced Translucency Option Doesn't Function in Post Process Volume

Ray Traced Translucency Option Doesn't Work in Post Process Volume. Found in 4.23 Preview 6 CL# 7848402, and 4.24 CL# 8074192 Working as expected in 4.22 CL# 7053642 This is a regression. ...

Crash on multi viewport when streaming in sub level with rect lights

GPU lightmass not baking directional light with sub levels and VTs off

"Windows Principal functionality is not supported on this platform" when packaging for iOS on Mac

Thread here: https://github.com/dotnet/standard/issues/1279 ...

ARKit- Camera Passthrough does not function in ARDebugCheck Packages targeted for Shipping

Repro Rate 5/5 Confirmed to be a regression. Regression tested in //UE4/Release-4.27 at CL 18319896 and it did not occur. This was tested on a prepackaged project for compat testing. Only a black ...

Missing BP/Python functionality to set a viewport OCIO configuration.

Multiple vendor's asked if there could be a way to programmatically set the created OCIO config for a viewport and select the source/dest settings as well and enable/disable the config.  The curren ...

Paper2D Set Sprite function in Construction requires mobility to be set to Movable

If you set up a default Sprite in an Actor BP and in the construction script set the sprite to an Editable Sprite Variable, in order for the new sprite to show up mobility of Sprite and BP must be M ...

Non-overridden BP update for Animation Blueprints not Calling Parent Function.

User in the linked UDN reports that the parent BP update was not being called in an animation blueprint unless they hooked up the parent call. By default this call is greyed out in the graph and sh ...