Unreal Engine Issues

Physics Substepping doesn't have the same effect from 4.15 to 4.16

Physics Substepping doesn't have the same effect from 4.15 to 4.16. In 4.16+ the ponytail in the provided project will have a jitter effect even with substepping enabled. This is a regression: Work ...

Lightmass crashes when lighting is built with material that has "Cast Shadow as Masked"

Lightmass is crashing when using a material that has "Cast Shadow as Masked" set to true in its properties. Found in 4.18 P3 CL#3676890 Unable to reproduce in 4.16.3 CL# 3561208 and 4.17.2 CL#365 ...

Compiling after adding a StaticMesh Component to a Child Blueprint of a Parent Blueprint causes the inherited StaticMesh Component to disappear

The Inherited StaticMesh Component in a Child Blueprint of a Parent Blueprint disappears when compiling the Blueprint. Regression: Yes Occurs in: 4.17.2, 4.18(Preview), and 4.19(Main) Does not o ...

Rename Folder in World Outliner does not function on Mac

Right-clicking on a folder in the World Outliner and selecting "rename" in the drop down menu is not functioning on Macs running El Capitan or Sierra. NOTE: The folder can be renamed by selecting, ...

Editor Menus don't update on Mac to currently selected Tab.

Under certain conditions, when switching between the project tab and subsequent docked blueprint tabs, the appropriate menu will not refresh for the currently selected tab. Regression: No ...

Overlap Events Stop Firing When Actor is Moved to a Different Level

Overlap events, such as OnComponentBeginOverlap seem to stop working when the actor is moved to a sub level. This does not occur if the object is deleted and then replaced in the level. ...

MSAA crashes Mac

https://forums.unrealengine.com/showthread.php?126489-Test-the-Forward-Renderer-in-your-PC-VR-projects-with-the-4-14-Preview&p=653027&viewfull=1#post653027 ...

Alt tabbing into the Blueprint Editor while a Microsoft IME keyboard is active causes the editor to freeze

If you change focus to the Blueprint Editor (Alt+tab) while a Microsoft IME keyboard is active, the editor will freeze for a short time. The duration of the freeze is dependent on the number of blue ...

Sky light color isn't animatable

Unable to select foliage by left clicking after 1.5 k foliage meshes placed

When using the foliage tool, once the mesh count reaches around 1.5k and higher you will be unable to select individual meshes by using the mouse. The lasso tool and the select all tool work as inte ...