Character BP yaw rotates at different speeds when played in Standalone vs. Selected Viewport

UE - Gameplay - Mar 12, 2015

When you have a character in a level and if you setup the blueprint of the character as shown below, the rotation of the character will differ when played Standalone vs Selected Viewport. Photo of ...

ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor

UE - Networking - Mar 3, 2015

ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor. Reproduced in 4.7.1 binary and Main ( ...

OSX editor fails to run on "older" hardware

at first, a "OpenGL Not Supported" message box appears and then the Editor instantly crashes after the "OK" button has been pressed. I tried again, but this time, passing in the "-opengl" flag. it ...

Foliage disappears after 1.5k if occlusion culling project setting is disabled

UE - World Creation - Worldbuilding Tools - Foliage - Aug 30, 2017

When unchecking the Occlusion culling option in the project settings, if you place over 1.5k foliage meshes in the world, they stop rendering, the meshes are still present in the level and can be se ...

Preformance drop when calling draw to render target

UE - Graphics Features - Jun 19, 2018

There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...

The result of the Attach target change operation using AttackTrack's ContextMenu varies depending on the flow

UE - Anim - Sequencer - Jul 6, 2018

At present AttackTrack's context menu has three patterns of Attach target change flowChange constraintBindingIDUse ExsitBindingUse NewBinding However, 1 and 3 can correctly change the target, but t ...

Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False

UE - Gameplay - Oct 12, 2018

When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...

Unable to launch version 4.24.1 after fresh installation. Assertionfailed IsValid()

Tools - Dec 31, 2019

User is receiving a crash after a brand new installation of version 4.24.1 NOTE: User is able to launch 4.20 - 4.23.1 without issue. "I tried reinstalling the editor build, updating all of my dr ...

C++ Class Creation Wizard does not setup include path properly when using a sub-directory with Public/Private Classes

Tools - May 7, 2020

The creation wizard is not correctly adding the #include path in the CPP file. To fix the issue to get the project to compile you have to add the path in the .CPP file within Visual Studio. In this ...

"For Each" Node doesn't show up in UMG Graph until an Actor BP is loaded

UE - Gameplay - Blueprint Editor - Apr 18, 2022

[Link Removed] ...