Unreal Engine Issues

Save on Compile "On Success Only" Does not save on Successful Compiles with Warnings

The option to save on Compile "On Success Only" does not save on successful compiles that contain warnings. If this is intended, then to avoid confusion, the tool tip should specifiy that "Blueprin ...

Renaming an AnimNotify does not redirect event nodes to the new name

Renaming an animNotify in the Animation Notifies window (Window>Animation Notifies) does not redirect existing event nodes to the new name. It also doesn't appear under the Right Click menu in the ...

Cast enum to byte could occasionally break cook/resave in level BP

 Workaround:The blueprint macro had a cast from the enum to an int and that was causing the issue, getting rid of the cast and just returning the enum and then changing all the places that were usin ...

Equals (==) node in blueprint is case sensitive for the Cyrillic alphabet

If two strings or names are compared in blueprint using the Equals (==) node, it is not case sensitive in English. It is case sensitive in Cyrillic however, even though it should be the same functio ...

Hot Reload: Component bCanEverTick is not updated after compile

Setting PrimaryComponentTick.bCanEverTick in a custom actor component's constructor does not does not stop the component from ticking after compile. ...

Translucent User Interface materials do not have a thumbnail preview

Translucent User Interface materials do not have a thumbnail preview. I do not see this issue with Translucent Surface materials. REGRESSION: No, this issue also occurs as far back as 4.17.2 ...

Previous Tangent Recalc` and Size by Life misbehave at low FPS

At low FPS particle systems with "Previous Tangent Recalculation" enabled in the Ribbon Data result in messy mesh generation. Found in 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6925347, and 4.24 ...

Fix SourceLength to be tangent to spot light axis

Nested component subobject visualization and defaults editing is not working properly.

Currently it is only partially possible to edit nested component subobjects, but not in a way that's consistent with how top-level component subobjects are edited (both Blueprints and IWCE). This is ...

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. ...