[CrashReport] Crash on Mac related to cooking for Android - libstdc++.6.dylib!std::_Rb_tree_rotate_left()

UE - Platform - Mobile - Jun 23, 2017

This is a common crash on Mac that has occurred since at least 4.12.5. It seems to occur during converting textures while cooking for Android. Callstack from LogLogCook:Display: Cooking /Engine/En ...

Timeline marker snaps to nearest frame on mouse up

UE - Anim - Sequencer - Aug 16, 2016

Scrubbing through frames in the timeline the cursor snaps to a frame next to the current location on mouse up. ...

UMG Widget color and Text color has different output at UE4 editor to Mobile preview and Mobile device.

UE - Editor - UI Systems - Jul 3, 2015

UMG Widget color and Text color has different color output at UE4 editor to Mobile preview and Mobile device. https://udn.unrealengine.com/questions/251945/umg-viewport-device%E1%84%8B%E1%85%A6%E1% ...

After clearing the options of a ComboBox (String) widget it will not update

UE - Editor - UI Systems - Jan 13, 2015

If a user uses clear options on a combo box (String) and then tries to add new and different data, the data that is added was the data that was removed with the clear options node. ...

Crash Occurs When Creating a Blueprint From a Nav Link Proxy

UE - Gameplay - Blueprint - Sep 27, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

DestroySession Continuously Failing

UE - Networking - Nov 21, 2016

The DestroySession node fails each time it is called, and the session is never destroyed. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 3172292. Unable to test in 4.15 Main CL# 3205566 due ...

WebBrowser SetVisibility not working on Android & iOS

UE - Platform - Mobile - May 29, 2018

SetVisibility not working with Web Browser Widget on mobile devices ...

Safezones on Android not set properly when orientation changes

UE - Platform - Mobile - Nov 5, 2024

Looks like the resize that does the safe zone update is done before the orientation is updated.  I suggested swapping the order to licensee in the UDN ticket and it worked for him.  This should be t ...

UEditorEngine::AddPendingLateJoinClient checks original PIE/SIE state, not current state

UE - Networking - Jan 27, 2025

When adding late joining clients, the engine checks the originally requested EPlaySessionWorldType, rather than checking whether or not the session is currently simulating or not. This means if the ...

Constraint axes are not visible in Physics Asset editor viewport

OLD - Anim - Jul 10, 2017

This is a regression from 4.16 as I was not able to repro this issue in //UE4/Release-4.16 at CL 3514769. ...