r.ScreenPercentage.Editor does not function

UE - Graphics Features - Jun 2, 2016

Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...

Using "Replace variable with..." does not mark a blueprint as needing compilation

UE - Gameplay - Blueprint - Jan 4, 2016

Using "Replace variable with..." does not mark a blueprint as needing compilation. Reproduced in 4.9.2 binary, 4.10.1 binary, and Main 4.12 (CL 2813214). This is not a regression; the same bug appe ...

A level will not save if a Blueprint that uses a Blueprint Component with an Event Dispatcher is placed in it

UE - Gameplay - Blueprint - Mar 8, 2015

A level will not save if a Blueprint that uses a Blueprint Component with an Event Dispatcher is placed in it. Reproduced in 4.7.2 binary. Could not test in Main due to [Link Removed] ...

Scale with Width on Landscape Splines offsets plane mesh on Z axis

UE - LD & Modeling - Terrain - Landscape - Apr 22, 2015

If "Scale with Width" is set on a landscape spline with a plane mesh, the plane will offset on the Z axis. In most other cases, scaling along the z axis does not affect planes. ...

Number of Frames in Animation Change on Import When the Frame Rate is Set to 30 or 60 in Maya

Tools - Feb 12, 2018

-When imported into 4.17.2 the 30fps animation had 42 frames. In any engine version after the animation has 17 frames -The 60 FPS animation only has 7 frames in all engine version ...

Video length indicator no longer works

TM - Tools - Oct 21, 2025

Reported in SF [Link Removed] In videos containing multiple parts, the cumulative time indicator that shows the full length of the video no longer works correctly and will incorrectly display a len ...

Nanite meshes are lit differently in Actor Colorization view modes than non-Nanite meshes

UE - Graphics Features - Nanite - Aug 28, 2024

When the Lit > Actor Coloration > Affects Navmesh or other Actor Coloration mode is used, Nanite meshes apply lighting differently than non-Nanite meshes which can make it difficult to use the Actor ...

ForLoop used inside BP Function Library always returns 0 index when used in a Construction Script

UE - Gameplay - Sep 18, 2018

Using a For Loop inside of a Blueprint Function or Function Library will always return index 0 when used in the Construction Script. This was reported and tested in 4.19.2 (CL-4033788). This was r ...

Cannot Add Torque to Skeletal Mesh

UE - Gameplay - Jan 15, 2016

When attempting to apply torque to a ragdolled skeletal mesh, nothing happens, regardless of the value used. Applying an impulse works as expected, but adding torque seems to have no effect. Found ...

Setting inherited variables in child blueprint crash editor

UE - Gameplay - Blueprint - Apr 15, 2015

PIE without compiling child blueprint (3rdSpiderPawn in example) that is attempting to affect an inherited variable will crash the editor. Additional Information: User has several cast to nodes ca ...