Unreal Engine Issues

Performance decreases with the number of morph targets

Performance decreases quite a bit on characters with large number of morph targets, as soon as even one target is active.  ...

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...

Copying a socket to another skeleton adds a "_0" suffix

Copying a socket to another skeleton adds a "_0" suffix Occurs on? 4.15 - 3450819 - YES 4.16 - 3466753 - YES 4.17 - CL#3512142 - YES ...

Crash when Importing .OBJ using the File > Import into Level Option

This JIRA is being entered as a result of it being one of the top crashes in 4.13.0. Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 1671 ...

Allow having TArray with index size using 64 bits instead of 32 bits

With the geometry data getting bigger and bigger we hit more often the int32 limits of the default TArray. All geometry data is store in array so we cannot have more then 2GB of vertexinstances or t ...

[Some] Hot Keys do not Alert User that they have been already assigned.

Visibility animations don't propagate to children

uasset file not deleted when delete skeletal mesh

PhAT Editor Crashes Engine when Collision Changed

When you change a section of a Multi-Convex Collision to Slyph and then Select the other sections, Engine will crash.Shift-selecting deleted convex in physics assets causes crash(From PhAT) Tried to ...

Normal tangents aren't recalculated on skeletal meshes with bone transforms when recompute tangent is enabled

Enabling recompute tangents on a skeletal mesh does not recompute tangent normals for translated parts of the skelmesh. If you addr.SkinCache.CompileShaders=1r.SkinCache.Mode=1r.SkinCache.Recompute ...