Unreal Engine Issues

Existing data can be lost from a datatable if the datatable is based on a struct that contains an array of another struct

If a DataTable is created in the Editor based on a struct that contains an array of a second struct, and a change is made in the second struct, any existing data values that have been entered into t ...

Compiler Results Panel Displays No Information Upon Successful Compile

Compiling a blueprint successfully displays no information in the Compiler Results window. However, if there are any errors, these will show up. This does not occur in 4.11.2 or 4.12.5. This is a ...

Adding an Event Dispatcher to a Template Character Blueprint Causes Increase in Compile Time

Adding an event dispatcher to one of the pre-created character blueprints in the template projects causes an increase in compile times. This does not occur with a blank actor or character blueprint ...

Sequence Recorder doesn't record First Person Template character correctly

Sequence Recorder doesn't record First Person Template character correctly. I wasn't able to track down exactly what it is about the First Person Character Blueprint that causes this though. ...

Planar Reflections on Mobile short view distance for non single plane faces

Planar Reflections on mobile work well with single plane assets but not with anything with multiple sides, like a box. Tested in: 4.12.4 CL-3028348 4.13 Dev-Editor CL-3038075 ...

Nested material functions can generate duplicate shader code

EQS Query Not Detecting Different Floors

Running an EQS for something such as finding a random point on a grid will not generate results on multiple floors. See the attached screenshot for an example. Was unable to reproduce in 4.11.2 d ...

Hierarchical LODs used with Precomputed Visibility cause actors to occlude that should not behind translucent materials

When using Precomputed Visibility in conjunction with HLODs and translucent materials without them culling actors occluded by the translucent material. The example gif attached shows that the base ...

Undo when modifying a single channel causes Entire Actor track to be selected

Undo when modifying a single channel causes Entire Actor track to be selected. This is problematic when you're trying to modify just the X, Y, or Z channel in the Graph Editor. ...

Changing a Packaged Game from Fullscreen to Windowed at Runtime Causes Title Bar to Disappear

When changing a packaged game from Fullscreen to Windowed mode at runtime, the window is placed in the top left corner of the monitor and the title bar disappears. Setting FullscreenMode=2 in the G ...