Unreal Engine Issues

Custom event parameter set to 0 by default

Default parameters do not appear to be retained for custom events. This was tested in 4.17 and the issue does not occur in 4.16. Appears to be a regression ...

Illegal names are accepted when creating a Content Browser Collection in code

When a Collection is created in code (see code snippet), the collection accepts names with illegal characters such as periods or spaces. Creating a collection through the editor properly warns that ...

Compiling Child Blueprint changes values in parent Blueprint

When Compiling a blueprint that is a child actor component to another blueprint, the value will be incorrectly displayed if the parent blueprint is also not compiled. Versions Tested 4.16.3 - CL: 3 ...

Enums in BP Structures display as Byte on Struct save

When an enum variable is added to a BP struct, saving the struct causes the enum to display its type as a Byte rather than the specified enum. Regression: Yes - This behavior does not occur in 4.16 ...

Memory usage regression in the editor caused by FArchiveAsync2 buffers

Owner No See option does not correctly apply to widgets using screen space

When using the Owner No See option with Widgets, if the widget is set to display on the screen rather than the world, then the option does not affect the widget as intended. Other forms of changing ...

Slomo command has no effect when Run Dedicated Server is set

Using the slomo # command when Run Dedicated Server is set has no effect. Command still functions when this checkbox is set to false. Regression: No, same behavior occurs in 4.16.3 ...

Crash while unloading a streaming level while spawned decals exist in the unloaded level

When unloading a level containing a decal that is using a dynamic material instance the editor will crash. ...

Crash when pasting transform in Sequencer

The editor crashes when trying to copy and paste a key in sequencer if the mouse has been slightly moved. ...

Foliage meshes do not appear in high res screenshots after certain amount

When using the Engine's High Res Screenshot tool, there is a limit on the amount of foliage that can be present before the meshes stop appearing. This number is around 1500 meshes, though I was not ...