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. ...

Editor crash on blueprint compile that contains edited BP Struct

UE - Gameplay - Blueprint - Sep 11, 2017

When a blueprint graph contains a "Make Struct" node for a blueprinted Struct, changing any pin's type causes the editor to crash when the blueprint is compiled. Regression: No - same behavior occu ...

Crash When Renaming a Duplicated Collapsed Node Graph With an Asterisk in the Name

UE - Gameplay - Blueprint - Sep 20, 2017

A crash is occurring if you collapse a node and name the collapsed graph something that contains an asterisk. The crash occurs if you copy and paste the collapsed graph, then attempt to rename it. I ...

Importing Camera FBX into a sequence can crash with a headless editor

UE - Anim - Sequencer - Mar 19, 2021

In a headless editor instance we will not be able to send toasts to the user, and we should not notify slate. The Sequencer Tools function library calls MovieSceneToolHelpers::ImportFBXCameraToExist ...

When using simple HMD plugin on mobile the camera can get stuck at 45 -90 angle even though the device it back in it's original position

UE - Platform - XR - Jan 19, 2016

If the user uses the simple HMD plug in, then launches on to a device and then follow up by spinning the device a few time the camera will become offset at an odd angle (Reset orientation and positi ...

WindDirectionalSourceComponent needs functions like, 'SetSpeed'

UE - Graphics Features - Oct 22, 2015

Currently changing variables like Speed via BP/C++ has no affect. We need to add funcs like SetSpeed that also update the proxy. Would be nice to make the vars private as well. ...

Resolution issue causes large black bar on Galaxy Note 4 when app starts

UE - Platform - Mobile - Aug 2, 2016

This issue only seems to affect the GalaxyNote4_5543 OS: 4.4.4 This issue is NOT occurring on devices with the same GPU This issue is NOT occurring on devices with the same OS If you lock the scr ...

Setting a value Material Parameter Collection to Material will cause crash

UE - Graphics Features - May 2, 2016

Adding a Material Parameter collection to a material, setting its value, then saving the material will cause a crash. This was only able to be reproduced on Mac and did not affect the Windows versio ...

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input.

UE - Editor - UI Systems - Oct 14, 2015

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input. Both Andorid and iOS devices are affected. This issue is found with 4.9 update. under 4.8 are fine. ...

Crash attempting to force delete a duplicate skeletal mesh while in Paint Mode

OLD - Anim - May 17, 2017

The editor crashes when you Force Delete the vertex painted asset in the viewport from the content browser. This was not a feature in 4.15 therefore not a regression This also happens in 4.17 - f ...