Set Range Animations imported from 60Hz frametime is halved

Tools - Aug 3, 2018

Reported by a licensee on UDN, this bug is fallout from the fix made for the following Jira:[Link Removed] - Fbx importer: animation range import is broken when importing 60Hz anim The attached ass ...

Rare assertion comes up when cooking if sequencer camera track has only additive transform track

UE - Anim - Sequencer - Mar 2, 2020

If a camera track has only additive transform track, some functions return uninitialized F3DTransformTrackToken made by default constructor. It causes a rare assertion. Please take a look at F3DTra ...

Undo function breaks local variables in Blueprint Function after compiling

UE - Gameplay - Oct 8, 2020

Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...

Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.

UE - AI Workflows - UI Systems - Jun 13, 2024

The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...

FCableSceneProxy::BuildCableMesh thrashes memory allocator

UE - Runtime - Simulation - Feb 12, 2025

FCableSceneProxy::BuildCableMesh in CableComponent.cpp:233 showed up as a hot spot in profiling because the two TArray allocators in SetDynamicData_RenderThread used by BuildCableMesh are created an ...

MayaLT LOD groups fail to import into the editor

UE - Editor - Content Pipeline - Import and Export - Jan 20, 2016

Given a simple LOD Group setup in MayaLT 2016 and exported with Default settings from LT as a 2014/15 FBX File, the FBX Fails to import. Given the same setup in Maya 2016 and Export Settings, the F ...

Crash report window does not open on GitHub source builds

UE - Foundation - Core - CrashReportClient - Jun 13, 2016

When using a source build of 4.12, the crash report client window does not open even if Crash Report Client is manually built alongside the editor. UPDATE: Only affecting Source builds from Github. ...

Quickly docking tab into the main window can cause duplicate tabs to appear

UE - Editor - UI Systems - Slate - Aug 18, 2016

When you quickly dock a tab to the main window, you can sometimes end up with 2 identical tabs. This causes some weird behavior, such as every action being done in one window being replicated in the ...

Children of a Blueprint Class not Available in the Default Value Dropdown for a Variable of that Class

UE - Gameplay - Blueprint - Jan 5, 2016

Creating a blueprint class, and then creating a few children of that class ( in this case, 4) does not display them as available options when setting the default value of a variable of that blueprin ...

editor crashes when variable inside of a struct is set to a class type then the object is moved to a new folder

UE - Gameplay - Blueprint - Mar 17, 2015

If a struct has a variable set to a class type, then the object of that class type is moved to a new folder in the editor, the struct will replace the class type with "class", which causes the edito ...