Unreal Engine Issues

DateTime Variable in Sub Widget resets on Compile

When attempting to set the default value of a date time in a sub widget the changes are not kept after compiling. ...

The CVar r.Tonemapper.GrainQuantization doesn't work and the GrainQuantization is always on

When setting in PreviewGameLaunguage, the package application always adds "culture" to the argument

Whenever packaging project from Launcher with a PreviewGameLanguage set, the culture="preview language" is added to the UE4CommandLine.txt file. Can avoid this issue by setting "None" in PreviewGam ...

RVT Material Preview incorrect in Landscape paint target layers

Available network bandwidth is too low for uncapped but slow frame rates

The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...

Shader Complexity not working correctly on Deferred Decals

If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...

Tile Streamed in Temporarily has Stepping on Landscape

This was reported in a UDN. Jeremy M. originally pointed out that the stepping looks to be caused by high res geometry sampling a low res heightmap. Additional observations:Loading the tile in w ...

Merged actors cannnot cast shadows when source actors Cast Shadows is disabled

Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...

Creating a new TextureRenderTarget2D Asset has the sRGB flag

The sRGB flag is check and set in PostEdit, so when I editing the asset will be correct. And I'm checking again with RHI, so there seems to be no drawing problem.[Link Removed] It seems to be corre ...

User defined struct variables with spaces do not import properly in cooked builds

DataTables exported to JSON in editor (UDataTable::WriteTableAsJSON, accessible by right clicking a data table and picking export to json) that contain variables with spaces or other outlawed charac ...