Large Landscapes using World Composition have weird LODs when streamed out and back in

UE - World Creation - Worldbuilding Tools - World Composition - Mar 13, 2020

When World Composition Sublevels are streamed out and back in the LODs appear distorted. This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview ...

While a Custom Event's delegate pin is connected to anything its details are not visible in the Details panel

UE - Gameplay - Blueprint - Oct 27, 2015

While a Custom Event's delegate pin is connected to anything its details are not visible in the Details panel. Tested with an empty reroute node as noted below as well as a Set Timer node. Reproduc ...

Crash occurs while clicking through the Landscape Overview Tutorial

Tools - Apr 28, 2017

Crash occurs while progressing through the Landscape Overview tutorial, after the step "After pressing the Create Button, your level should now have a Landscape Actor inside of it" This is a regres ...

Crash occurs from change of inner struct value with TMap variable of outer struct

UE - Gameplay - Blueprint - May 22, 2017

A crash occurs from the change of inner struct value with TMap variable of an outer struct. This crash does not occur if you change the variable type as a substitution for the last step. Regression ...

Crash when Undoing the change to a default class setting for widgets

UE - Editor - UI Systems - Sep 25, 2017

The editor crashes when trying to undo a default class change for a child widget after that widget has been compiled. This did not happen in 4.16, it appears to be a regression. ...

Instance Static Meshes spawned at Runtime do not have collision

UE - Gameplay - May 8, 2015

Spawning an Instance Static Mesh at runtime does not have collision. This issue appears only in 4.8 Preview 1 and the 4.8 Release branch (tested on CL-2540862), but is fixed in Main Branch as of Ma ...

Crash when attempting to revert a Child blueprint from overriding its parent's function while it also has a child of its own

Tools - Dec 4, 2017

When reverting the change of overriding a function from a blueprint's parent, the editor will crash if that blueprint has a child of its own. Regression?: No This also occurred in 4.16 ...

AI MoveTo Blueprint node will zero velocity on Pawn when called, causing a freeze if the Pawn is already moving

UE - AI - Oct 4, 2016

AI MoveTo Blueprint node will zero velocity, causing a stop when a new destination is set if the Pawn is currently moving. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.1 (CL 3142249) F ...

Stationary Lights are causing shadowing errors with Movable Objects

UE - Graphics Features - Feb 11, 2015

Stationary Lights are generating shadows with flickering black square and vanish shadows altogether on movable objects in the Preview of 4.7p6 and in the newest Release Branch of 4.7 (2439472). The ...

City Sample - Parked Cars, Traffic, and Crowds do not spawn while in PIE

UE - AI - Mass - May 1, 2023

Repro Rate 10/10 Issue is a Regression as it doesn't occur in 5.1 Parked Cars, Traffic, and Crowds spawn in as expected when launching the project in Game Mode or a Packaged Build Going into the ...