Unreal Engine Issues

Crash when hot reloading after adding HISM Component class

After adding a class based on "Hierarchical Instanced Static Mesh Component", any attempt to hot reload, from Visual Studio or within the editor, causes the editor to crash. Regression: No - crash ...

Monitor Directories does not prompt for re-import if change is made

In the 4.16 Binary build When making changes to an asset that is set up for auto import, or in a folder that is a Content Monitored directory, changes made do not get detected by the engine. Regres ...

Crash when loading the tutorials for 'Landscape Painting Mode' and 'Landscape Sculpting Mode'

A crash occurs when starting either the Landscape Painting Mode or Landscape Sculpting Mode tutorials. It crashes even if a landscape is already in the level. This is similar to [Link Removed], h ...

WorldContextObject is null in BP function library

New folders don't show up in World Outliner when "Only in Current Level" is set

When Only in Current Level is set in the World Outliner, any new folder will be hidden by default since there are no assets from the level in the new folder. This make it seem that the folder wasn' ...

Sampling Scene Texture in Custom Expression in Post Process Material Breaks Viewport UV

This issue does not occur in 4.18.3 but does occur in 4.19 and Main, making this a regression. Per user: I suspect there's an issue with custom expressions and sampling coordinates. It appears onc ...

Scrollbox widget moves much slower when using a gamepad

Using the gamepad to scroll a scrollbox causes the scrolling to move slower. Tested in 4.18.3(CL - 3832480), 4.19.2 (CL - 4033788), 4.20.1 (CL -  4233996), 4.21 (CL  - 4245542) ...

Reset To Defaults in Editor Preferences Graph Editor does not work consistently

The Reset to Defaults button in Editor Preferences does not reset all the properties to their default values. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4543149), 4.22 (CL ...

Corruption in rotating decal in TM-ShaderModels on iPhone 8 and X's

This particular decal is animated and has a Translucent decal blend mode This occurs on both iPhone 8 and 8 Plus (11.0.2) It does not occur on: iPhone SE, iOS 11 beta1 iPhone 7 Plus, iOS 10.3.2 ...

Deleting reference variable will result in unusable picker appearing on resolve nodes

REGRESSION: No When deleting a reference variable, any resolve node pins using it will have a picker added, which won't have anything listed in their dropdown. This isn't consistent with what happ ...