Using Blend Physics Weight causes skeletal mesh to spin at high speed

OLD - Anim - Mar 5, 2015

When Phyics Blend in the PHAT editor is set between 0 and 1, the user character will spin wildly. User has image of this affecting character in game whereas I was only able to replicate it in the PH ...

Cut & Paste in Sequencer breaks with Attach track

UE - Anim - Sequencer - Jan 15, 2025

Cutting two tracks in sequencer, which one is attached to another one, and pasting it break with Attach track. By this operation, Attack track loses its binding object. Copying such tracks and paste ...

Opening or Creating a Material with SubSurface Profile will Crash Editor with LPV enabled

UE - Graphics Features - Dec 22, 2014

After enabling Light Propagation Volumes with the console variable r.LightPropogationVolume=1, opening or creating a material with the subsurface profile model will crash the editor. Broken in 4.6. ...

Blueprint icon flashes when hovered over

UE - Editor - Content Pipeline - Content Browser - Mar 24, 2015

Blueprint icon flashes constantly when mouse is hovering over it; this only occurs with a specific type of blueprint class. . Branch: Binary, from Launcher . Build Version: 4.7.3 . Description: T ...

World Outliner Sorting order ignores underscores for order

Tools - May 14, 2015

When using the an underscore in the front of a name no longer works for sorting in 4.7 and later. In 4.6 and prior if you added an underscore to the front of the name it would sort to the top of the ...

Combo box does not function in packaged build

UE - Editor - UI Systems - May 10, 2017

The ComboBox (string) element for UMG is not correctly displaying, The array options do not appear and can not be selected, for the packaged build, while PIE behaves as expected. Regression: This ...

Imported Materials Are Not Assigned To Correct Element Index Based Off Mat ID (3dsMax)

UE - Editor - Content Pipeline - Import and Export - Nov 17, 2016

When importing a mesh with material IDs from 3dsMax they will get assigned to different element numbers than intended. This worked 4.13.2 Binary CL 3172292 Is Broken in 4.14 Binary CL 3195953 ...

[AI] Navmesh does not generate correctly on a negatively scaled ISM.

UE - AI - Navigation - Aug 16, 2022

Setting a single axis of an ISM negative results in navmesh not being generated on top of it. However, setting 2 axes to negative scale does have the navmesh generate as is expected.  Also see more ...

Toggling visibility of Sublevels on a server can cause a disconnect if Dynamic Actors exist in the sublevels.

UE - Networking - Aug 17, 2018

The PackageMap / NetGuidCache appear to get into a bad state on Clients if the Server toggles level visibility of a sublevel. This can affect currently connected clients, as well as clients that jo ...

Draw Brush Polys setting does not display translucent Material

Tools - Oct 13, 2017

The Draw Brush Polys setting does not display translucent Material in versions 4.17 and higher, instead, checking the option appears to do nothing. This issue does not occur in 4.16.3, this issue is ...