Unreal Engine Issues

Subtraction Node wild card inputs incorrectly assigns Time Span data type when given a Date Time data type

This is a regression //UE4/Release-4.27 has "DateTime - DateTime" and a "DateTime - TimeSpan" node. The subtraction node, with wild card inputs, incorrectly assigns Time Span data type when fed a D ...

Connection/Disconnecting an integer pin to a divide node causes the pin literal value to fail

This only happens when you connect a pin, then disconnect it and try to compile again. ...

[Spatialization] - When a sound starts playing while the listener in in the Binaural Radius, when they exit the sound stops playing

If a sound starts playing while the listener is inside the binarual radius, the sound stops abruptly when they leave the radius. Does not occur if the listener starts in the binaural radius. Does no ...

The VertexInterpolator connected to a Normalize node, input into BaseColor results in black Mesh LOD Coloration

It does not appear to matter to the repro steps what is input to the VertexInterpolator, it matters more that there is a Normalize between the VertexInterpolator and the base color input of the mate ...

Movie Render Queue dirties Sequences and Requests checkout after a render

This seems to be a regression of [Link Removed] ...

Crash in BuildVisibleDecalList

"Base Pass Shader" stat results are missing or display incorrect information while using Vulkan

Base Pass Shader results are not showing, or showing up incorrectly when looking at the Stats results within the material editor of an Unreal Editor using Vulkan. Regression Tested: //UE4/Release-4 ...

When multiple actors are selected, they have different undo behavior in the details panel

When the text in spinbox has focus, it doesn't get the change notification externally. It may also be worth noting that ctrl z or ctrl y also do not get bubbled up to undo the text box values. It a ...

Reimporting an FBX causes invalid collision on Spline Mesh Components (Chaos)

Reported in UDN: [Link Removed] Reimporting a static mesh asset from an FBX file causes collision to disappear on spline meshes referencing the static mesh asset. In investigating this in 4.27, I ...

Content browser folder names are allowed to use parentheses, which are disallowed by object paths

The content browser compares folder names against INVALID_LONGPACKAGE_CHARACTERS, which allows parentheses. However, object paths compare against INVALID_OBJECTPATH_CHARACTERS, which disallow parent ...