Unreal Engine Issues

20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only

User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...

When walking off of angled geometry the player pawn will fall off of the edge horizontally instead of falling

When walking off of angled geometry the player pawn will fall off of the edge horizontally instead of falling. Even with all possibly related values changed in the character defaults, the player wi ...

Fix SourceLength to be tangent to spot light axis

Rotated component made into root displays incorrectly in the blueprint editor

Rotated component made into root displays incorrectly in the blueprint editor. Closing and reopening the BP editor corrects the displayed root component. ...

Mobile Preview - Custom Stencil 4.23 Regression

Regression when using custom stencil with in-editor mobile preview. This does NOT reproduce in MAIN at CL 9730599 ...

Skeleton mesh with hair strands material will lead to unnecessary draw call submissions

Materials with "Used With Hair Strands" enabled will cause Skeletal Meshes to draw twice in the Base Pass. ...

Editor vs Runtime: Inconsistent data layer behavior when attaching actors

In editor, data layer system respects the data layer settings for each actor, but at runtime, the condition check is made collectively for each actor cluster, resulting in differences in behavior. ...

Changing a value inside a struct exposed to blueprints removes struct from blueprints and gives error upon compiling and saving blueprint

If a user creates a C++ class that contains a struct and references that struct within a blueprint, making any changes to the struct within C++ header file will prevent the user from saving the blue ...

Mouse loses focus after setting show mouse cursor to true and clicking anywhere on screen

If the mouse is toggled to show by using "Set Show Mouse Cursor" and then the user clicks in the window the mouse will lose focus (the camera will no longer freely track the mouse) ...

No log files are being created for Windows Shipping builds

When you package a project for Windows Shipping, The project will not generate a log file when the .exe project is played. The project will generate a log file if you package the project in the De ...