Unreal Engine Issues

Infinite loop in UAnimSequence::ExtractRootMotion when sampling backwards

When sampling root motion backwards we can hit an infinite loop in ExtractRootMotion. This happens if the initial sample time + negative delta is off the end of the animation clip. In that case FA ...

Shapes create with generic 'StaticMeshActor' ID instead of using their name like in previous releases

This is a regression. In 4.27 basic shapes created from the place actor panel are named after their respective shapes making it easier to to discern. In 5.0ea this is no longer the case. ...

Problem importing broken FBX

An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...

FXAA artefacts on smaller/distant detail

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 ...

JSON Serializer FromJson function returns true when property types don't match

If the type of a property in a Json string doesn't match the expected type in the Json serializable class being created, then the value for that property will not be read in. However, FromJson still ...

Duplicate keys in TMap and TSet after using FJsonObjectConverter::JsonValueToUProperty

Found here: [Link Removed] The relevant sections in ConvertScalarJsonValueToFPropertyWithContainer() use script helpers to add defaulted elements to each container and then parse straight into them ...

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 ...

Valve Index Controller Device Visualization Models are misaligned with their physical counterpart

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 ...