Plugin fails to compile in 4.11 due to redefinition errors

UE - Foundation - Cpp Tools - Plugin System - May 10, 2016

Plugin fails compile in 4.11 / 4.12 due to redefinition of class/struct type (locally). AH user reported LNK2005 error when compiling in 4.11 Regression: YES? - Project with the attached plugin co ...

Function input Bool loses checked value when updating from 4.16 to 4.17

UE - Gameplay - Blueprint Editor - Oct 17, 2017

Licensee reported that when updating from 4.16.1 to 4.17.2 the value of a function input Boolean is being reset. It is checked as True in 4.16, but when switching to 4.17, it is no longer checked. ( ...

Converting BSP to static mesh on Linux causes the editor to crash

UE - Platform - Linux - Mar 11, 2016

Converting a BSP to a static mesh will freeze and crash the editor when done on Linux. Windows does not exhibit the same conversion crash. ...

Adding Text Widget BP as "Widget Class" in Actor Class BP and compiling multiple times, changes Text visibility in Viewport

UE - Editor - UI Systems - Sep 15, 2017

Adding a new Text Widget Blueprint as a Widget Class to a new Actor Class Blueprint changes the visibility of the Text in the Viewport when compiling the Widget Blueprint multiple times. Regressio ...

Sub editors do not gain focus when opened

Tools - Aug 3, 2015

Sub editors do not gain focus when opened. Ctrl+F4 (Close Major Tab) does not work until the open tab has gained focus, so it must be clicked before the hot-key works. Reproduced in 4.8.3 binary an ...

[CrashReport] UE4Editor_Kismet!FBlueprintGraphArgumentLayout::OnArgNameChange()

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.16 and has been occurring since at least 4.14 affecting more than 300 unique users. User Descriptionsi made a macro called IsolateYaw and set the input t ...

[CrashReport] UE4Editor_PropertyEditor!TWeakPtr<SDetailSingleItemRow,0>::Pin() [sharedpointer.h:1120]

Tools - Oct 30, 2017

This seems to be a new crash coming out of 4.18. It is not very widespread at the moment, but the callstack is very similar to [Link Removed], which was fixed for 4.18.0. Users have not provided a ...

Enum Element Names Reset on Project Upgrade

UE - Gameplay - Feb 22, 2017

Upgrading a copy of a project from 4.14 to 4.15 appears to be resetting the names of enum elements on switch on enum nodes. Opening the enum, saving it, and then restarting the project seems to res ...

Infinite loop error message does not help and spawns too many messages

UE - Gameplay - Blueprint - Dec 17, 2014

The infinite loop reporter is reporting every infinite loop by popping up a window for each problem loop. So if you have an actor with 3 loops that trigger the infinite loop error and then you have ...

Inconsistent Prioritization of Navigation Modifiers

UE - AI - Dec 12, 2016

When working with Nav Modifiers in a level that contains objects that have a custom Nav Area class, the prioritization of the modifiers is not consistent. If you notice in the attached project, so ...